AIR WATCH: BAY AREA

Chemical: Benzene
Benzene is classified as a human carcinogen. Long-term exposure to benzene in the air causes leukemia, a potentially fatal cancer of the blood-forming organs. Benzene is a volatile organic compound (VOC) that is an important solvent and used in the production of drugs, plastics, synthetic rubber and dyes. The health limit for benzene is 1ppb 1
Monitor: Community Fenceline
Detection Limit (DL): 0.5ppb 5.0ppb
Maximum 1-hour average: Below DL Below DL
Multiplier over health limit: - -
Time: - -
Wind Direction: - -
Total time detected: Below DL Below DL
Total time above health limit (HL): Below HL Below HL
Average 2
Best case: Below DL Below DL
Worst case: 0.50ppb 5.00ppb

AIR WATCH: BAY AREA

Chemical: Black Carbon
Black carbon, or soot, is a type of dark particulate matter produced by the incomplete combustion of fossil fuels, wood, and other biofuels. Black carbon can be an irritant to lung health, inflaming the lungs and aggravating respiratory illnesses such as bronchitis and asthma. The health limit is 5 μg/m3 1 .
Monitor: Community Fenceline
Detection Limit (DL): 0.05µg/m³ -
Maximum 1-hour average: 0.36µg/m³ No data
Multiplier over health limit: - No data
Time: 07:16-08:16AM No data
Wind Direction: SE No data
Total time detected: 21.15 hours No data
Total time above health limit (HL): Below HL No data
Average 2
Best case: 0.19µg/m³ No data
Worst case: 0.19µg/m³ No data

AIR WATCH: BAY AREA

Chemical: Ethylbenzene
Ethylbenzene is commonly found in refineries as a component of petroleum and is also an ingredient in some paints and solvents. The acute toxicity of Ethylbenzene is low and there is limited information on long-term health impacts. The health limit for benzene is 60ppb 1 .
Monitor: Community Fenceline
Detection Limit (DL): 0.5ppb -
Maximum 1-hour average: Below DL No data
Multiplier over health limit: - No data
Time: - No data
Wind Direction: - No data
Total time detected: Below DL No data
Total time above health limit (HL): Below HL No data
Average 2
Best case: Below DL No data
Worst case: 0.50ppb No data

AIR WATCH: BAY AREA

Chemical: Hydrogen Sulfide
Hydrogen sulfide occurs naturally in petroleum, natural gas, volcanic gases, and hot springs. It is also found in many waste streams and is easily identified by its distinctive "rotten egg" odor. Short term exposure to hydrogen sulfide can result in irritation to the eyes and mucous membranes. The health limit is 8ppb 1 .
Monitor: Community Fenceline
Detection Limit (DL): 2ppb 30ppb
Maximum 1-hour average: Below DL Below DL
Multiplier over health limit: - -
Time: - -
Wind Direction: - -
Total time detected: Below DL Below DL
Total time above health limit (HL): Below HL Below HL
Average 2
Best case: Below DL Below DL
Worst case: 2.00ppb 30.00ppb

AIR WATCH: BAY AREA

Chemical: Sulfur Dioxide
Sulfur dioxide can be an irritant to the lungs, inflaming lung tissue and aggravating respiratory illnesses such as bronchitis and asthma. Sulfur dioxide is a product of combustion from coal and other fuel burning. The health limit is 75ppb.
Monitor: Community Fenceline
Detection Limit (DL): - 5.0ppb
Maximum 1-hour average: No data Below DL
Multiplier over health limit: No data -
Time: No data -
Wind Direction: No data -
Total time detected: No data Below DL
Total time above health limit (HL): No data Below HL
Average 2
Best case: No data Below DL
Worst case: No data 5.00ppb

AIR WATCH: BAY AREA

Chemical: Toluene
Toluene can be an irritant to the nose, throat and eyes, respiratory tract, and can cause headaches. Toluene occurs naturally as a component of petroleum and is produced in petroleum refining and coke oven operations. The health limit is 70ppb 1 .
Monitor: Community Fenceline
Detection Limit (DL): 0.5ppb 5.0ppb
Maximum 1-hour average: Below DL Below DL
Multiplier over health limit: - -
Time: - -
Wind Direction: - -
Total time detected: Below DL Below DL
Total time above health limit (HL): Below HL Below HL
Average 2
Best case: Below DL Below DL
Worst case: 0.50ppb 5.00ppb

AIR WATCH: BAY AREA

Chemical: Xylene 1
Xylenes can be an irritant to the eye, nose, throat and skin. Xylenes are commonly used in industrial solvents, paints, varnishes, dyes, adhesives, detergents, and pharmaceuticals. The health limit is 50ppb 2 .
Monitor: Community Fenceline
Detection Limit (DL): 0.5ppb 5.0ppb
Maximum 1-hour average: 1.17ppb Below DL
Multiplier over health limit: - -
Time: 01:10-02:10AM -
Wind Direction: SE -
Total time detected: 15.85 hours Below DL
Total time above health limit (HL): Below HL Below HL
Average 3
Best case: 0.47ppb Below DL
Worst case: 0.64ppb 5.00ppb