Percentile range in groupings of 10%. The highest CalEnviroScreen scores (most burdened) are represented in the 91 - 100% grouping. See the CalEnvor mapper at:
http://oehha.maps.arcgis.com/apps/Viewer/index.html?appid=112d915348834263ab8ecd5c6da67f68What is diesel particulate matter?
Exhaust
from trucks, buses, trains, ships and other equipment with diesel
engines contains a mixture of gases and solid particles. These solid
particles are known as diesel particulate matter (diesel PM). Diesel PM
contains hundreds of different chemicals. Many of these are harmful to
health. The highest levels of diesel PM are near ports, rail yards and
freeways.
The
particles in diesel PM can reach deep into the lung, where they can
contribute to health problems including eye, throat and nose irritation,
heart and lung disease, and lung cancer. Children and the elderly are
most sensitive to the effects of diesel PM.
More information can be found in the Diesel PM chapter in the CalEnviroScreen 2.0 report.
About CalEnviroScreen:The Office of Environmental Health Hazard Assessment (OEHHA), on behalf of the California Environmental Protection Agency (CalEPA), announces the availability of the Communities Environmental Health Screening Tool: CalEnviroScreen Version 2.0 (CalEnviroScreen 2.0). CalEnviroScreen is a screening methodology that can be used to help identify California communities that are disproportionately burdened by multiple sources of pollution.
The tool was updated in October 2014 to include additional data along the US-Mexico border. Information on the update is described in the SB 535 response to comments (http://www.calepa.ca.gov/EnvJustice/GHGInvest/Documents/SB535PubCom.pdf#page=10)
The 2.0 report and supporting documents are available at: http://oehha.ca.gov/ej/ces2.html