The Great Lakes Initiative Toxicity Data Clearinghouse is a central location for information on criteria, toxicity data, exposure parameters and other supporting documents used in developing water quality standards in the Great Lakes Watershed.

Annual air trends report in the form of an interactive web application. The report features a suite of visualization tools that allow the user to: -Learn about air pollution and how it can affect our health and environment. -Compare key air emissions to gross domestic product, vehicle miles traveled, population, and energy consumption back to 1970. -Take a closer look at how the number of days with unhealthy air has dropped since 2000 in 35 major US cities. -Explore how air quality and emissions have changed through time and space for each of the common air pollutants. -Check out air trends where you live. Users will also be able to share this content across social media, with one-click access to Facebook, Twitter, Pinterest, and other major social media sites.

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

This map shows the general pattern of arsenic contamination from Ruston (Tacoma Smelter Plume) By Census Block Group. With 90% certainty, at least 1 in 10 parcels will have soil arsenic at or above levels shown. Predictions are based on distance and direction from the former Asarco smelter, and on sampling data from forested and other soils undisturbed by development. Actual arsenic levels may vary greatly from parcel to parcel.Disclaimer: Actual arsenic levels may vary greatly from parcel to parcel. Property-specific sampling is necessary to determine the actual amount of arsenic on a given property. How to Sample your own soil - https://ecology.wa.gov/Spills-Cleanup/Contamination-cleanup/Dirt-Alert-program/Soil-samplingPattern and Description of the Tacoma Smelter Plume:There are three major factors to Arsenic deposition (the three D's) but many others exist. 'D'irection- wind rose direction,'D'istance, 'D'isturbanceArsenic tends to exceed state cleanup levels more often than other metals. Lead is the other main contaminant.Arsenic and lead are found mainly in the top six inches of soil.In areas where soil has been moved or turned over, contamination can be deeper.Undisturbed areas, such as forests, tend to have higher levels of contamination.In general, levels are related to distance and direction from the former smelter. Levels decrease with distance and are higher along the dominant north-northeast and south-southwest wind directions.Created a dataset for arsenic(0 to 6 inches sample depth) that had similar study characteristics in the field and lab. Various environmental studies were reviewed because of the size of the study area. Ecology reviewed data from over 130 studies and found 23 studies that had applicable data. Theses studies contained over 22,500 disturbed-residential samples and 1469 undisturbed samples for our analysis.

The Toxics Release Inventory (TRI) Chemical Hazard Information Profiles (TRI-CHIP) dataset contains hazard information about the chemicals reported in TRI. Users can use this XML-format dataset to create their own databases and hazard analyses of TRI chemicals. The hazard information is compiled from a series of authoritative sources including the Integrated Risk Information System (IRIS). The dataset is provided as a downloadable .zip file that when extracted provides XML files and schemas for the hazard information tables.