Pavement sealant contains chemicals that are known carcinogens,
which get into nearby homes, lakes, and the air. Sealants based
on coal tar release more dangerous chemicals than those based on
asphalt. Research and development efforts to improve our ability
to provide scientific information needed by local beach managers
faced with questions about environmental quality and possible
beach closure or resource usage. Overview of project to develop
and apply a variety of earth science methods to interpret the
geologic links between mineral dusts such as silica and asbestos
and human health problems with links to contacts, tasks, and
products. Arsenic is a naturally occurring element in rocks,
soils, and the waters in contact with them. It is found in
ground water as the result of minerals dissolving from weathered
rocks and soils. This site links to data, maps, and more.