Mayors from Bay St. Louis to Gulfport, Mississippi, will be holding a press conference that some say may include announcements of evacuation plans later today, while a group of Congressmen led by Ed Markey (D-MA), Chairman of the Energy and Environment Subcommittee will be holding similar meetings in New Orleans, 70 kilometres to the west of this small community.
The oil has been gushing from the well nearly unabated for 18 days at a rate of some 200,000 gallons (757,00 litres) a day. BP is trying to position a funnel to capture the oil over one of three leak points at the bottom of the Gulf of Mexico.
Health risks from the oil at sea include temporary, minor nuisances such as runny noses and headaches to long-term risks such as cancer if contaminated seafood ends up in the marketplace.
Public health agencies in Alabama, Louisiana and Mississippi advised people near the coast who experience nausea, headaches or other smell-related ailments to stay inside, turn on air conditioners and avoid exerting themselves outdoors.
The US Centres for Disease Control and Prevention is working with epidemiologists in the Gulf states to develop studies of health repercussions from the oil spill.
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| NOAA Forecast for the trajectory of the Gulf spill by Saturday, May 8. Landfall is highly likely. |
| NOAA |
Crude oil emits volatile organic compounds that react with nitrogen oxides to produce ozone. Fires being set by the Coast Guard to burn off oil on the water's surface would produce sooty, acrid smoke, said the EPA.
"We don't know what the impacts are going to be yet," the EPA’s Bary. "We don't know in what direction this oil will go."
The potential for unhealthy air quality depends on a variety of factors, particularly the speed and direction of winds that could disperse fumes and determine where they go, said Jonathan Ward, an environmental toxicology professor at the University of Texas Medical Branch at Galveston.
With the leaky Gulf well some 50 miles offshore, Ward said much of the oil vapor likely wouldn't reach land, although the potential for air pollution from the slick will remain as long as the leak continues.
People working around the Gulf spill should be equipped with respirator devices and wear heavy-duty gloves and protective clothing to guard against painful skin rashes, Gina Solomon, an associate professor at the University of California-San Francisco medical school and a senior scientist with the Natural Resources Defense Council, told AP.
Solomon has treated patients exposed to oil fumes, said AP.
Last night, BP conducted oil burns of the Gulf Coast, which filled the air with the viscous smell of gaslight oil from past 10 p.m. local time to about 4 a.m. local time.
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| A Coastguard schematic of how the BP oil funnel is to work. |
| US Coastguard |
On Thursday, the US Coast Guard confirmed for the first time oil had made its way past protective booms and was washing up on land on the Chandeleur Islands chain off the coast of Louisiana.
Heavier concentrations of crude remain further offshore, and the Coast Guard said weather forecasts suggested it would stay there until the weekend.
BP said emergency teams had been sent to Freemason Island, a favourite fishing spot for recreational anglers some 30 miles (50 kilometres) off Louisiana's coast, to deploy inflatable booms to protect its prime marshland.
Fears are growing that sea life has been severely affected in the area, which includes vital spawning grounds for fish, shrimp and crabs.