PCBs may threaten killer whale populations for 30-60 years

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Exposure to toxic PCBs poses a long-term threat to orcas also known as killer whales. Credit: Courtesy of National Oceanic Atmospheric Administration
Exposure to toxic PCBs poses a long-term threat to orcas, also known as killer whales. Credit: Courtesy of National Oceanic & Atmospheric Administration

Orcas or killer whales may continue to suffer the effects of contamination with polychlorinated biphenyls (PCBs) for the next 30 – 60 years, despite 1970s-era regulations that have reduced overall PCB concentrations in the environment, researchers in Canada report.


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All News summaries for September 10, 2007

Astronauts step out for longest, hardest spacewalk

3 hours ago | User rating: not rated yet
(AP) -- Astronauts stepped out for the longest and hardest spacewalk of their mission Saturday to wrap up greasy repair work on a gummed-up joint at the international space station.

Astronauts face hardest spacewalk to finish repair

11 hours ago | User rating: not rated yet
(AP) -- Astronauts up on the international space station faced the longest and hardest spacewalk of their mission Saturday, a seven-hour-plus excursion to wrap up repair work on a gummed-up joint.

NASA's space water recycling system has hiccups

Nov 21, 2008 | User rating: not rated yet
(AP) -- NASA's revolutionary new space water recycling system is having serious hiccups. The $154 million device for turning astronauts' urine and sweat into drinking water aboard the international space ...

NASA scales back flagship Mars mission

Nov 21, 2008 | User rating: not rated yet
(AP) -- NASA is scrapping a controversial piece of hardware from its next-generation Mars rover that would have allowed the spacecraft to store rock fragments in a mini-basket for a future mission.

Would-be Japanese space tourist wants $21M back

Nov 21, 2008 | User rating: not rated yet
(AP) -- Japanese millionaire Daisuke Enomoto had planned to dress up as his favorite cartoon character in outer space and spent $21 million to make it happen. Now he claims the company that was supposed make his dream come ...
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