Abstract
Two-week average concentrations of ozone (O3), nitric acid vapor (HNO3) and ammonia (NH3) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were determined with seasonal means for individual sites ranging between 62 and 88 ppb for O3, 1.0-3.8 μg m-3 for HNO3, and 2.6-5.2 μg m-3 for NH 3. Calculated O3 exposure indices were very high, reaching SUM00-191 ppm h, SUM60-151 ppm h, and W126-124 ppm h. Calculated nitrogen (N) dry deposition ranged from 1.4 to 15 kg N ha-1 for maximum values, and 0.4-8 kg N ha-1 for minimum values; potentially exceeding Critical Loads (CL) for nutritional N. The U.S., California, and European 8 h O3 human health standards were exceeded during 104, 108, and 114 days respectively, indicating high risk to humans from ambient O3.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3261-3271 |
| Number of pages | 11 |
| Journal | Environmental Pollution |
| Volume | 158 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2010 |
Fingerprint
Keywords
- Air pollution
- Critical loads
- Human health
- Nitrogen deposition
- Ozone
- Phytotoxicity
ASJC Scopus subject areas
- Pollution
- Health, Toxicology and Mutagenesis
- Toxicology
Cite this
Ozone, nitric acid, and ammonia air pollution is unhealthy for people and ecosystems in southern Sierra Nevada, California. / Cisneros, Ricardo; Bytnerowicz, Andrzej; Schweizer, Donald; Zhong, Sharon; Traina, Samuel; Bennett, Deborah H.
In: Environmental Pollution, Vol. 158, No. 10, 10.2010, p. 3261-3271.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ozone, nitric acid, and ammonia air pollution is unhealthy for people and ecosystems in southern Sierra Nevada, California
AU - Cisneros, Ricardo
AU - Bytnerowicz, Andrzej
AU - Schweizer, Donald
AU - Zhong, Sharon
AU - Traina, Samuel
AU - Bennett, Deborah H
PY - 2010/10
Y1 - 2010/10
N2 - Two-week average concentrations of ozone (O3), nitric acid vapor (HNO3) and ammonia (NH3) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were determined with seasonal means for individual sites ranging between 62 and 88 ppb for O3, 1.0-3.8 μg m-3 for HNO3, and 2.6-5.2 μg m-3 for NH 3. Calculated O3 exposure indices were very high, reaching SUM00-191 ppm h, SUM60-151 ppm h, and W126-124 ppm h. Calculated nitrogen (N) dry deposition ranged from 1.4 to 15 kg N ha-1 for maximum values, and 0.4-8 kg N ha-1 for minimum values; potentially exceeding Critical Loads (CL) for nutritional N. The U.S., California, and European 8 h O3 human health standards were exceeded during 104, 108, and 114 days respectively, indicating high risk to humans from ambient O3.
AB - Two-week average concentrations of ozone (O3), nitric acid vapor (HNO3) and ammonia (NH3) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were determined with seasonal means for individual sites ranging between 62 and 88 ppb for O3, 1.0-3.8 μg m-3 for HNO3, and 2.6-5.2 μg m-3 for NH 3. Calculated O3 exposure indices were very high, reaching SUM00-191 ppm h, SUM60-151 ppm h, and W126-124 ppm h. Calculated nitrogen (N) dry deposition ranged from 1.4 to 15 kg N ha-1 for maximum values, and 0.4-8 kg N ha-1 for minimum values; potentially exceeding Critical Loads (CL) for nutritional N. The U.S., California, and European 8 h O3 human health standards were exceeded during 104, 108, and 114 days respectively, indicating high risk to humans from ambient O3.
KW - Air pollution
KW - Critical loads
KW - Human health
KW - Nitrogen deposition
KW - Ozone
KW - Phytotoxicity
UR - http://www.scopus.com/inward/record.url?scp=77958174900&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77958174900&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2010.07.025
DO - 10.1016/j.envpol.2010.07.025
M3 - Article
VL - 158
SP - 3261
EP - 3271
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
IS - 10
ER -