Bridgeton Landfill Air Monitoring

Follow-Up Review of Air Monitoring Data - November 2013

Follow-Up Review of Air Sampling Data

Follow-Up Review of Air Monitoring Data

November 25 - December 2

The Department of Health and Senior Services (DHSS) has reviewed air quality monitoring data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 25 to the afternoon of December 2, 2013.

DNR provides continuous monitoring data for reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations as well as routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported occasional light to moderate odors at various locations throughout this time period. DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.

Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were below levels of public health concern. These levels were taken by the highly sensitive Jerome meter, which detects hydrogen sulfide specifically. Reduced sulfur compounds were periodically detected by AreaRAE monitors but previous sampling has shown that these detections are primarily due to a reduced sulfur compound with strong odor but lower toxicity.

Sulfur Dioxide

Average sulfur dioxide concentrations were below screening levels, except for one hour at one location. While exposure to elevated levels of sulfur dioxide may cause irritation or other short-term symptoms, considerable dispersion is expected to reduce potential exposure below levels of public health concern in nearby residential areas.

Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period.  There are no health-based screening values for total VOCs. However, total VOC data are used to identify the need for compound specific sampling. To be proactive, DNR is performing weekly VOC compound-specific sampling in locations upwind and downwind of the landfill. The laboratory results are submitted for DHSS review of public health concerns and that analysis is regularly posted online.

Carbon Monoxide

Average carbon monoxide concentrations were below levels of public health concern.

Radiation Rates

Gamma radiation rates continue to be indistinguishable from natural background levels and were below levels of public health concern.

November 21 - 25

The Department of Health and Senior Services (DHSS) has reviewed air quality monitoring data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 21 to the afternoon of November 25, 2013.

DNR provides continuous monitoring data for reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations as well as routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported moderate odors at locations southwest of the landfill on November 23 and no odors to light odors at other locations surrounding the landfill during this time period. DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.

Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were below levels of public health concern. These levels were taken by the highly sensitive Jerome meter, which detects hydrogen sulfide specifically. Reduced sulfur compounds were periodically detected by AreaRAE monitors but previous sampling has shown that these detections are primarily due to a reduced sulfur compound with strong odor but lower toxicity.

Sulfur Dioxide

Average sulfur dioxide concentrations were below screening levels, except for several hours at two locations. While exposure to elevated levels of sulfur dioxide may cause irritation or other short-term symptoms, considerable dispersion is expected to reduce potential exposure below levels of public health concern in nearby residential areas.

Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period. There are no health-based screening values for total VOCs. However, total VOC data are used to identify the need for compound specific sampling. To be proactive, DNR is performing weekly VOC compound-specific sampling in locations upwind and downwind of the landfill. The laboratory results are submitted for DHSS review of public health concerns and that analysis is regularly posted online.

Carbon Monoxide

Average carbon monoxide concentrations were below levels of public health concern.

Radiation Rates

Gamma radiation rates continue to be indistinguishable from natural background levels and were below levels of public health concern.

November 18 - 21

The Department of Health and Senior Services (DHSS) has reviewed air quality monitoring data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 18 to the afternoon of November 21, 2013.

DNR provides continuous monitoring data for reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations as well as routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light odors at locations north, northeast, southeast, south, southwest, and west of the landfill during this time period. DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.

Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were below levels of public health concern. These levels were taken by the highly sensitive Jerome meter, which detects hydrogen sulfide specifically. Reduced sulfur compounds were periodically detected by AreaRAE monitors but previous sampling has shown that these detections are primarily due to a reduced sulfur compound with strong odor but lower toxicity.

Sulfur Dioxide

Average sulfur dioxide concentrations were below screening levels, except for several hours at one location. While exposure to elevated levels of sulfur dioxide may cause irritation or other short-term symptoms, considerable dispersion is expected to reduce potential exposure below levels of public health concern in nearby residential areas.

Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period. There are no health-based screening values for total VOCs. However, total VOC data are used to identify the need for compound specific sampling. To be proactive, DNR is performing weekly VOC compound-specific sampling in locations upwind and downwind of the landfill. The laboratory results are submitted for DHSS review of public health concerns and that analysis is regularly posted online.

Carbon Monoxide

Average carbon monoxide concentrations were below levels of public health concern.

Radiation Rates

Gamma radiation rates continue to be indistinguishable from natural background levels and were below levels of public health concern.

November 14 - 18

The Department of Health and Senior Services (DHSS) has reviewed air quality monitoring data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 14 to the afternoon of November 18, 2013.

DNR provides continuous monitoring data for reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations as well as routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light odors at locations north, northeast, east, and southeast of the landfill during this time period. DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.

Hydrogen Sulfide and Other Reduced Sulfur Compound

Average hydrogen sulfide concentrations were below levels of public health concern. These levels were taken by the highly sensitive Jerome meter, which detects hydrogen sulfide specifically. Reduced sulfur compounds were not detected by AreaRAE monitors during this time period.

Sulfur Dioxide

Average sulfur dioxide concentrations were below levels of public health concern.

Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period. There are no health-based screening values for total VOCs. However, total VOC data are used to identify the need for compound specific sampling. To be proactive, DNR is performing weekly VOC compound-specific sampling in locations upwind and downwind of the landfill. The laboratory results are submitted for DHSS review of public health concerns and that analysis is regularly posted online.

Carbon Monoxide

Average carbon monoxide concentrations were below levels of public health concern.

Radiation Rates

Gamma radiation rates continue to be indistinguishable from natural background levels and were below levels of public health concern.

November 11 - 14

The Department of Health and Senior Services (DHSS) has reviewed air quality monitoring data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 11 to the afternoon of November 14, 2013.

DNR provides continuous monitoring data for reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations as well as routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light to moderate odors at locations north, south, southwest, and southeast of the landfill during this time period. DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.

Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were below levels of public health concern. These levels were taken by the highly sensitive Jerome meter, which detects hydrogen sulfide specifically. Reduced sulfur compounds were not detected by AreaRAE monitors during this time period.

Sulfur Dioxide

Average sulfur dioxide concentrations were below levels of public health concern.

Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period. There are no health-based screening values for total VOCs. However, total VOC data are used to identify the need for compound specific sampling. To be proactive, DNR is performing weekly VOC compound-specific sampling in locations upwind and downwind of the landfill. The laboratory results are submitted for DHSS review of public health concerns and that analysis is regularly posted online.

Carbon Monoxide

Average carbon monoxide concentrations were below levels of public health concern.

Radiation Rates

Gamma radiation rates continue to be indistinguishable from natural background levels and were below levels of public health concern.

November 7 - 11

The Department of Health and Senior Services (DHSS) has reviewed air quality screening data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 7 to the afternoon of November 11, 2013. On June 7, DHSS began issuing follow-up reviews of the daily air quality screening data on a twice-weekly basis.

On April 23, DNR began routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. In addition, DNR has provided continuous monitoring of reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light to moderate odors at locations north, northeast, east, southeast, south, and west of the landfill during this time period.

  • Winds were predominantly from the south, southwest, and west of the landfill, except on November 10 when wind were variable.
  • DNR detected light odors east and southeast of the landfill on November 7; light to moderate odors north and northeast of the landfill on November 8; light odors east, southeast, southwest, and west of the landfill on November 9; and light to moderate odors northeast, southeast, south, and west of the landfill on November 10.. Odors were monitored using a Nasal Ranger olfactometer.
  • DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.
Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were well below levels of public health concern.

  • The maximum concentration of hydrogen sulfide detected was 4.0 parts per billion (ppb) during routine monitoring. Hydrogen sulfide concentrations were detected by the Jerome meter, which is highly sensitive and specific to hydrogen sulfide.
  • Reduced sulfur compounds were not detected by AreaRAE monitors during this time period.
Sulfur Dioxide

Average sulfur dioxide concentrations were below levels of public health concern.

  • Sulfur dioxide was briefly detected at the monitoring locations south and west of the landfill. However, the average concentrations of sulfur dioxide were less than 0.01 parts per million (ppm) and did not exceed health-based guidelines for acute exposure.
Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period.

  • Previous sampling has shown that, while several VOCs are present in the landfill source gas, benzene may be a primary VOC of public health concern. However, benzene was not detected during routine monitoring around the perimeter of the landfill.
  •  For seven hours on November 7 and eight hours on November 8 at the monitoring location east of the landfill, average total VOC concentrations exceeded a level that indicates the need for compound-specific sampling.
  • Average total VOC concentrations periodically exceeded levels that indicate a need for compound-specific sampling at the monitoring locations south of the landfill and at other times at the monitoring location east of the landfill. However, these elevated concentrations were not verified by other AreaRAE monitors stationed in the same locations..
  • DNR is performing VOC compound-specific sampling in locations upwind and downwind of the landfill on a routine basis. The laboratory results are submitted for DHSS review of public health concerns.
Carbon Monoxide

Average carbon monoxide concentrations were well below levels of public health concern.

Radiation Rates

Gamma radiation rates were well below levels of public health concern.

  • Gamma radiation rates continue to be at levels that are at or near natural background levels.

>November 4 - 7

The Department of Health and Senior Services (DHSS) has reviewed air quality screening data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of November 4 to the afternoon of November 7, 2013. On June 7, DHSS began issuing follow-up reviews of the daily air quality screening data on a twice-weekly basis.

On April 23, DNR began routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. In addition, DNR has provided continuous monitoring of reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light to moderate odors at locations north, southwest, and south of the landfill during this time period.

  • Winds were predominantly from the south on November 4 and November 5, from the west on November 6, and from the west and southwest on November 7.
  • DNR detected moderate odors south of the landfill on November 4; light to moderate odors north and southwest of the landfill on November 5; and light to moderate odors southwest of the landfill on November 6. The moderate odors on November 4 were detected approximately 2 miles south of Bridgeton Landfill near a sewage lift station that was likely the source of the odors. Odors were monitored using a Nasal Ranger olfactometer.
  • DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.
Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were well below levels of public health concern.

  • The maximum concentration of hydrogen sulfide detected was 7.2 parts per billion (ppb) during routine monitoring. Hydrogen sulfide concentrations were detected by the Jerome meter, which is highly sensitive and specific to hydrogen sulfide.
  • For ten hours on November 5, fifteen hours on November 6, and ten hours on November 7 at the monitoring location east of the landfill, the average concentration of reduced sulfur compounds exceeded a health-based guideline for acute exposure to hydrogen sulfide. For ten hours on November 5 and twelve hours on November 6 at the monitoring location south of the landfill, the average concentration of reduced sulfur compounds exceeded a health-based guideline for acute exposure to hydrogen sulfide. However, these compounds detected by AreaRAE monitors are not just hydrogen sulfide but primarily another reduced sulfur compound with lower toxicity.
Sulfur Dioxide

Average sulfur dioxide concentrations were below levels of public health concern.

  • Sulfur dioxide was briefly detected at the monitoring locations south and west of the landfill. However, the average concentrations of sulfur dioxide were less than 0.01 parts per million (ppm) and did not exceed health-based guidelines for acute exposure.
Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period.

  • Previous sampling has shown that, while several VOCs are present in the landfill source gas, benzene may be a primary VOC of public health concern. However, benzene was not detected during routine monitoring around the perimeter of the landfill.
  • Average total VOC concentrations periodically exceeded levels that indicate a need for compound-specific sampling at the monitoring locations south and east of the landfill. However, these elevated concentrations were not verified by other AreaRAE monitors stationed in the same locations.
  • DNR is performing VOC compound-specific sampling in locations upwind and downwind of the landfill on a routine basis. The laboratory results are submitted for DHSS review of public health concerns.
Carbon Monoxide

Average carbon monoxide concentrations were well below levels of public health concern.

Radiation Rates

Gamma radiation rates were well below levels of public health concern.

  • Gamma radiation rates continue to be at levels that are at or near natural background levels.

October 31 - November 4

The Department of Health and Senior Services (DHSS) has reviewed air quality screening data collected by the Department of Natural Resources (DNR) at Bridgeton Landfill from the afternoon of October 31 to the afternoon of November 4, 2013. On June 7, DHSS began issuing follow-up reviews of the daily air quality screening data on a twice-weekly basis.

On April 23, DNR began routine, twice daily, surveillance of hydrogen sulfide, benzene, and odor levels around the entire periphery of the landfill. In addition, DNR has provided continuous monitoring of reduced sulfur compounds (reported as hydrogen sulfide), sulfur dioxide, carbon monoxide, and total volatile organic compounds (VOCs) at three fixed locations. DHSS has reviewed both sets of data to identify potential public health concerns for short-term health effects. Generally, samples are collected near the property boundary and dispersion is expected to reduce exposure downwind of the sample locations.

Odors

DNR reported light odors at locations north and northeast of the landfill and light, moderate, and strong odors at locations east, southeast, and south of the landfill during this time period.

  • Winds were predominantly from the southwest on October 31, west on November 1, west and northwest on November 2, and south and southeast on November 3 and November 4.
  • DNR detected light odors north and northeast of the landfill on October 31; light, moderate, and strong odors east, southeast, and south of the landfill on November 1; light odors north and southeast of the landfill on November 2; and light odors north of the landfill on November 3 and November 4. Odors were monitored using a Nasal Ranger olfactometer.
  • DHSS continues to recommend that during periods of objectionable odor, sensitive individuals should stay indoors as much as possible, avoid outdoor exercise, and seek medical advice for any acute symptoms. Symptoms associated with exposure to strong odors include headache, nausea, and fatigue. Symptoms generally associated with strong odors typically disappear once the odors dissipate.
Hydrogen Sulfide and Other Reduced Sulfur Compounds

Average hydrogen sulfide concentrations were well below levels of public health concern.

  • The maximum concentration of hydrogen sulfide detected was 3.7 parts per billion (ppb) during routine monitoring. Hydrogen sulfide concentrations were detected by the Jerome meter, which is highly sensitive and specific to hydrogen sulfide.
  • For two hours on November 2 and seven hours on November 3 at the monitoring location east of the landfill, the average concentration of reduced sulfur compounds exceeded a health-based guideline for acute exposure to hydrogen sulfide. However, these compounds detected by AreaRAE monitors are not just hydrogen sulfide but primarily another reduced sulfur compound with lower toxicity.
Sulfur Dioxide

Average sulfur dioxide concentrations were below levels of public health concern.

  • Sulfur dioxide was briefly detected at the monitoring locations south and east of the landfill. However, the average concentrations of sulfur dioxide were less than 0.01 parts per million (ppm) and did not exceed health-based guidelines for acute exposure.
Benzene and Total VOCs

Benzene was not detected in ambient air at any of the surveillance locations around the landfill during this time period.

  • Previous sampling has shown that, while several VOCs are present in the landfill source gas, benzene may be a primary VOC of public health concern. However, benzene was not detected during routine monitoring around the perimeter of the landfill.
  • For nine hours on October 31, twelve hours on November 1, and nine hours on November 2 at the monitoring location east of the landfill, average total VOC concentrations exceeded a level that indicates the need for compound-specific sampling
  • Average total VOC concentrations periodically exceeded levels that indicate a need for compound-specific sampling at the monitoring location south of the landfill. However, these elevated concentrations were not verified by other AreaRAE monitors stationed in the same location.
  • DNR is performing VOC compound-specific sampling in locations upwind and downwind of the landfill on a routine basis. The laboratory results are submitted for DHSS review of public health concerns.
Carbon Monoxide

Average carbon monoxide concentrations were well below levels of public health concern.

Radiation Rates

Gamma radiation rates were well below levels of public health concern.

  • Gamma radiation rates continue to be at levels that are at or near natural background levels.

Follow-Up Review of Air Sampling Data

November 26

The Department of Health and Senior Services (DHSS) has reviewed air sample data collected for the Department of Natural Resources (DNR) near Bridgeton Landfill on November 26, 2013. Samples were collected at two locations upwind of the landfill and two locations downwind of the landfill for laboratory determination of concentrations of volatile organic compounds (VOCs). DHSS has reviewed this data for evaluation of potential public health concerns of short-term health effects.

VOCs

Concentrations of VOCs were well below levels of public health concern. Downwind of the landfill, 7 VOCs were detected in ambient air, which ranged in concentration from 0.15 parts per billion (ppb) to 3.2 ppb and did not exceed health-based screening levels for acute exposure.

November 19

The Department of Health and Senior Services (DHSS) has reviewed air sample data collected for the Department of Natural Resources (DNR) near Bridgeton Landfill on November 19, 2013. Samples were collected at two locations upwind of the landfill and two locations downwind of the landfill for laboratory determination of concentrations of volatile organic compounds (VOCs). DHSS has reviewed this data for evaluation of potential public health concerns of short-term health effects.

VOCs

Concentrations of VOCs were well below levels of public health concern. Downwind of the landfill, 7 VOCs were detected in ambient air, which ranged in concentration from 0.2 parts per billion (ppb) to 3.5 ppb and did not exceed health-based screening levels for acute exposure.

November 13

The Department of Health and Senior Services (DHSS) has reviewed air sample data collected for the Department of Natural Resources (DNR) near Bridgeton Landfill on November 13, 2013. Samples were collected at one location upwind of the landfill and two locations downwind of the landfill for laboratory determination of concentrations of volatile organic compounds (VOCs). DHSS has reviewed this data for evaluation of potential public health concerns of short-term health effects.

VOCs

Concentrations of VOCs were well below levels of public health concern. Downwind of the landfill, 6 VOCs were detected in ambient air in concentrations that generally exceeded concentrations detected upwind of the landfill. VOC concentrations ranged from 0.22 parts per billion (ppb) to 2.6 ppb and did not exceed health-based screening levels for acute exposure.

November 7

The Department of Health and Senior Services (DHSS) has reviewed air sample data collected for the Department of Natural Resources (DNR) near Bridgeton Landfill on November 7, 2013. Samples were collected at two locations upwind of the landfill and two locations downwind of the landfill for laboratory determination of concentrations of volatile organic compounds (VOCs). DHSS has reviewed this data for evaluation of potential public health concerns of short-term health effects.

VOCs

Concentrations of VOCs were well below levels of public health concern. Downwind of the landfill, 10 VOCs were detected in ambient air, which ranged in concentration from 0.2 parts per billion (ppb) to 11.0 ppb and did not exceed health-based screening levels for acute exposure.

November 1

The Department of Health and Senior Services (DHSS) has reviewed air sample data collected for the Department of Natural Resources (DNR) near Bridgeton Landfill on November 1, 2013. Samples were collected at two locations upwind of the landfill and two locations downwind of the landfill for laboratory determination of concentrations of volatile organic compounds (VOCs). DHSS has reviewed this data for evaluation of potential public health concerns of short-term health effects.

VOCs

Concentrations of VOCs were well below levels of public health concern. Downwind of the landfill, 7 VOCs were detected in ambient air in concentrations that generally exceeded concentrations detected upwind of the landfill. VOC concentrations ranged from 0.22 parts per billion (ppb) to 6.0 ppb and did not exceed health-based screening levels for acute exposure.