What is toxicity? Most definitions would explain it as the degree to which a substance is poisonous.

Knowing a substance’s toxic levels is particularly important to federal agencies that use the information to test potential risks posed to people’s health and to the environment.

So how do scientists know how toxic something is and whether or not that substance—be it oil, chemical treating agents or toxic metals—will be toxic when introduced into marine or coastal waters?

The young loggerhead sea turtle, its ridged shell only a few inches across, perches calmly among a floating island of brown seaweed called sargassum. Suddenly, a shadow passes overhead. A hungry seabird? Taking no chances, the small sea turtle dips beneath the ocean surface. It dives through the sargassum's tangle of branches and bladders filled with air, which keep everything afloat. Open ocean stretches for miles around the free-floating sargassum mats — which provide critical refuge to juvenile sea turtles in the Gulf of Mexico — as they drift slowly with the currents. Unfortunately, these currents can just as easily push floating oil. This puts sargassum and all the creatures it supports in the path of oil spills.

Have you ever seen a rainwater puddle on a street and wondered why it seemed to have a rainbow floating on top? That rainbow effect is caused when oil on the street floats to the top of the puddle.

A core pillar of the Disaster Preparedness Program (DPP) is designing and implementing exercises. Exercises play a vital role in preparedness by enabling NOAA and the National Ocean Service (NOS) to test and validate plans and capabilities, and identify and address gaps and areas for improvement. The DPP leads exercise programs to improve NOS’s preparedness posture and emphasize the value of the exercise cycle. 

Every month our Emergency Response Division provides scientific expertise and services to the U.S. Coast Guard on everything from running oil spill trajectories to model where the spill may spread, to possible effects on wildlife and fisheries and estimates on how long the oil may stay in the environment. Here are some of May's notable incidents ...

Water pollution comes in many forms, from toxic chemicals to trash. The sources of water pollution are also varied, from factories to drain pipes. In general, NOAA’s Office of Response and Restoration (OR&R) classifies water pollution into two categories; point source and non-point source pollution.

NOAA’s Office of Response and Restoration is known for its scientific support for oil spill response, but did you know about the other ways we work to keep the public safe, the environment clean, and the economy moving? One of our strategies is to partner with other government agencies to produce tools such as the CAMEO® software suite, a collection of tools to help emergency responders plan for and respond to hazardous chemical spills. 

Just last week, NOAA announced the 2020 Atlantic Hurricane Season predictions. Many of us take this time to ensure we’re prepared for hurricanes and other disasters. Usually, the Office of Response and Restoration shares tips about protecting yourself, your property, and the marine environment before, during, and after a hurricane. But, while many of the OR&R staff are making personal preparedness efforts, they’re also preparing for their furry family members. We at the Disaster Preparedness Program believe it’s important to not only be prepared for ourselves, but for our pets, too!