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Oyster farms are losing millions of molluscs each year, putting livelihoods in jeopardy. Scientists are racing to understand why Farmed oysters are mysteriously dying off in the millions and ...
Meet the flesh-eating bacteria that's killed people in Texas, Florida, and New York.
Another study found that close to 50% of farmed oysters may be contaminated with microplastics. “While we are still not entirely sure how this affects human health, it’s definitely something ...
This means that the radiation dose LD 50 fluctuates with the time at which it is measured. For example, the β radiation dose that causes 50% mortality in the American cockroach at 25 days post-exposure is 5,700 R, but to reach 50% mortality at 3 days post-exposure, 45,610 R are needed.
Diagnosis is typically made based on a history of significant radiation exposure and suitable clinical findings. [3] An absolute lymphocyte count can give a rough estimate of radiation exposure. [3] Time from exposure to vomiting can also give estimates of exposure levels if they are less than 10 Gy (1000 rad). [3]
Oyster farming is an aquaculture (or mariculture) practice in which oysters are bred and raised mainly for their pearls, shells and inner organ tissue, which is eaten. Oyster farming was practiced by the ancient Romans as early as the 1st century BC on the Italian peninsula [ 1 ] [ 2 ] and later in Britain for export to Rome.
People with compromised immune systems should avoid raw seafood, the CDC says.
The international Radura logo, used to show a food has been treated with ionizing radiation. A portable, trailer-mounted food irradiation machine, c. 1968 Food irradiation (sometimes American English: radurization; British English: radurisation) is the process of exposing food and food packaging to ionizing radiation, such as from gamma rays, x-rays, or electron beams.