PBT Trend Monitoring: Measuring Lead in Suspended Particulate Matter, 2012 Results
Bookter A and Mathieu C. 2013. PBT Trend Monitoring: Measuring Lead in Suspended Particulate Matter, 2012 Results. Publication No. 13--03-030. Washington State Department of Ecology. Olympia, WA
The Washington State Department of Ecology (Ecology) and Health developed a chemical action plan in 2009 to identify the toxic effects of lead, describe its occurrence in the environment, and recommend ways to reduce exposure to humans and wildlife (Ecology and WDOH, 2009). Ecology began a long-term monitoring program in 2008 to assess temporal changes of lead levels in rivers and streams in Washington. The primary objectives of the program were to (1) establish baseline levels of lead in the freshwater environment, and (2) measure spatial and temporal trends in environmental lead levels as reduction strategies are implemented. As part of the monitoring program, Ecology collects suspended particulate matter (SPM) samples from 15 monitoring sites throughout Washington for analysis of total lead. Samples are collected twice in the spring and twice in the fall at each site. Monitoring sites (shown in Figure 1) cover a range of watershed size, land use, and potential lead sources. Roberts et al. (2011) discuss the potential lead sources in Washington. This report summarizes results from the fifth year of sampling (2012).
- Type
- Published Report
- Authors
- Bookter, Andy; Mathieu, Callie
- Date of Issue
- 2013-07
- Publisher
- Washington State Department of Ecology
- Units
- OLYM
- Keywords
- Lead, Monitoring, Queets River Watershed
- Subjects
- Ecological Framework: Water | Water Quality | Toxics