The oil spill in the Gulf of Mexico poses direct threats to human health from inhalation or dermal contact with the oil and dispersant chemicals, and indirect threats to seafood safety and mental health. Physicians should be familiar with health effects from oil spills to appropriately advise, diagnose, and treat patients who live and work along the Gulf Coast or wherever a major oil spill occurs.
The main components of crude oil are aliphatic and aromatic hydrocarbons.1 Lower-molecular-weight aromatics—such as benzene, toluene, and xylene—are volatile organic compounds (VOCs) and evaporate within hours after the oil reaches the surface. Volatile organic compounds can cause respiratory irritation and central nervous system (CNS) depression. Benzene is known to cause leukemia in humans, and toluene is a recognized teratogen at high doses.1 Higher-molecular-weight chemicals such as naphthalene evaporate more slowly. Naphthalene is listed by the National Toxicology Program as “reasonably anticipated to cause cancer in humans” based on olfactory neuroblastomas, nasal tumors, and lung cancers in animals.2 Oil can also release hydrogen sulfide gas and contains traces of heavy metals, as well as nonvolatile polycyclic aromatic hydrocarbons (PAHs) that can contaminate the food chain. Hydrogen sulfide gas is neurotoxic and has been linked to both acute and chronic CNS effects; PAHs include mutagens and probable carcinogens.1 Burning oil generates particulate matter, which is associated with cardiac and respiratory symptoms and premature mortality. The Gulf oil spill is unique because of the large-scale use of dispersants to break up the oil slick. By late July, more than 1.8 million gallons of dispersant had been applied in the Gulf. Dispersants contain detergents, surfactants, and petroleum distillates, including respiratory irritants such as 2-butoxyethanol, propylene glycol, and sulfonic acid salts.
Some tools below are only available to our subscribers or users with an online account.
Download citation file:
Web of Science® Times Cited: 19
Customize your page view by dragging & repositioning the boxes below.
More Listings atJAMACareerCenter.com >
Enter your username and email address. We'll send you a link to reset your password.
Enter your username and email address. We'll send instructions on how to reset your password to the email address we have on record.
Athens and Shibboleth are access management services that provide single sign-on to protected resources. They replace the multiple user names and passwords necessary to access subscription-based content with a single user name and password that can be entered once per session. It operates independently of a user's location or IP address. If your institution uses Athens or Shibboleth authentication, please contact your site administrator to receive your user name and password.