Tag: DDT

May 20, 2022

Coastal condors face risks from legacy chemicals

Chemicals long-banned in the U.S. like DDT and PCBs continue to pose a risk to California condors, researchers found, as the critically endangered raptors feed on contaminated marine mammals along...

February 3, 2021

Toxic chemicals linked to sea lion cancer

Researchers believe a cancer that has killed sea lions in California for years is linked to toxic chemicals in the water. After two decades of research, scientists concluded a previously...

June 25, 2019

After 50 years, DDT still impacts lake ecosystem

Between the 1950s and 1960s, airplanes spread more than 6,000 tons of the pesticide DDT onto remote forests in New Brunswick, Canada during one of the largest insecticide spray programs...

August 10, 2016

Polluted sea lions poison condors

Marine mammals are so polluted that they are poisoning endangered condors, according to a new study. California condors (Gymnogyps californianus) that fed on marine mammal carcasses had high blood levels...

April 18, 2016

Ospreys recover in Chesapeake despite pollutants

The Chesapeake Bay is now home to around 10,000 mating pairs of ospreys despite constant levels of some chemical pollutants in the water. “The osprey population in the Chesapeake is...

Male Polar Bear Near Kaktovik Alaska
April 13, 2015

DDT, PCBs Could Affect Polar Bear Hormones

Sitting at the top of the food chain as the world’s largest land carnivore has its benefits. You have your choice of food and few predators to confront. But a...