Trends for Specific VOC Compounds
The NY ambient air toxics monitoring program was first established in 1985 as part of the Governor's Air Monitoring Modernization Capital Budget Program. This monitoring network measures Volatile Organic Compounds (VOCs) across the State. The initial development of the network and analytical capabilities was part of a joint Staten Island/New Jersey Urban Air Toxics Assessment Project (SI/NJ Study) coordinated with USEPA Region II from 1987 through 1989. The network expanded in 1990 to a statewide network.
The National Air Toxics Trends Station (NATTS) Network was developed by EPA to fulfill the need for long-term Hazardous Air Pollutants (HAPs) monitoring data of consistent quality. Among the principle objectives are assessing trends and emission reduction program effectiveness, assessing and verifying air quality models (e.g., exposure assessments, emission control strategy development, etc.), and as direct input to source-receptor models. The two NY NATTS sites, located in the Bronx (IS 52) and Rochester, are among 27 sites nationwide funded by EPA.
New York's statewide toxics network comprises of 12 monitoring sites, including the two NATTS sites, covering industrial, urban, and rural areas. Composite 24-hr canister samples are collected on an every sixth day schedule. Whole air samples are routinely analyzed for 42 VOCs using Gas Chromatography with a Mass Spectrometer detector (GCMS).
The following links provide graphical trend data for the following compounds during the period of 2006-2012.
- 1,3-Butadiene Annual Averages (2006-2014)
- 1,4-Dichlorobenzene Annual Averages (2006-2014)
- Benzene Annual Averages (2006-2014)
- Chloroform Annual Averages (2006-2014)
- Methylene Chloride Annual Averages (2006-2014)
- m,p-Xylene Annual Averages (2006-2014)
- o-Xylene Annual Averages (2006-2014)
- Toluene Annual Averages (2006-2014)