TV News LIES

Thursday, Apr 24th

Last update03:48:11 PM GMT

You are here News Environment American urban lake pollution traced to parking lot seal coat

American urban lake pollution traced to parking lot seal coat

E-mail Print PDF

Lake pollutionA black sealant sprayed on parking lots, driveways and playgrounds turns out to be the largest contributor to the rise of a toxic pollutant in urban lakes and reservoirs across America, according to a new U.S. Geological Survey study.

Scientists saw concentrations of polycyclic aromatic hydrocarbons (PAHs) going up rapidly in the 1990s in areas of urban sprawl. PAHs have been known as a probable human carcinogen since the 19th century, when cancer struck chimney sweeps, said Peter Van Metre, a USGS scientist and a principal author of the report. PAHs also are toxic to fish and other aquatic plant and animal life.

The research was based on sampling of sediments from the bottom of 40 lakes and reservoirs in commercial and residential areas in cities and suburbs typical of where most Americans live — not near old industrial sites. Among the cities tested were Anchorage, Alaska; Fort Worth, Texas; Portland, Ore.; Seattle; Orlando, Fla.; Raleigh, N.C., Chicago, Newark, N.J., Detroit; Milwaukee and Boston.

What was striking about the findings was that lakes that had high levels of PAHs also had a large fraction of those PAHs coming from coal-tar-based sealants. The opposite also was true — lakes that had low PAH levels also had a very low fraction of them from the sealant.

More...


Most Recent Related Stories...


Manager at Japan's Fukushima plant admits radioactive water "embarrassing"

FukushimaThe manager of the Fukushima nuclear power plant admits to embarrassment that repeated efforts have failed...

Top court declines Exxon's appeal in NYC water pollution case

exxon fine upheldThe Supreme Court on Monday declined to review a ruling against Exxon Mobil Corp that ordered...

It's Earth Day today: Get your green on

Earth Day 2014Today's Google Doodle is home to a hummingbird, a puffer fish, a dung beetle and a...

Corn biofuels worse than gasoline on global warming in short term – study

Corn biofuelsBiofuels made from the leftovers of harvested corn plants are worse than gasoline for global warming...
 
America's # 1 Enemy
Tee Shirt
& Help Support TvNewsLIES.org!
TVNL Tee Shirt
 
TVNL TOTE BAG
Conserve our Planet
& Help Support TvNewsLIES.org!
 
Get your 9/11 & Media
Deception Dollars
& Help Support TvNewsLIES.org!
 
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!