Search results
Results From The WOW.Com Content Network
Gas leaks can damage or kill plants. [4] [5] In addition to leaks from natural gas pipes, methane and other gases migrating from landfill garbage disposal sites can also cause chlorosis and necrosis in grass, weeds, or trees. [6] In some cases, leaking gas may migrate as far as 100 feet (30 m) from the source of the leak to an affected tree. [7]
Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...
The Bhopal disaster (also known as Bhopal gas tragedy): A gas leak incident which led to at least 3,787 deaths. 1988, England. Camelford water pollution incident : The accidental contamination of the drinking water supply to 20,000 local people and up to 10,000 tourists of the town of Camelford with 20 tonnes of aluminium sulphate .
A detailed inventory of greenhouse gas emissions from upstream oil and gas activities in Canada for the year 2000 estimated that fugitive equipment leaks had a global warming potential equivalent to the release of 17 million metric tonnes of carbon dioxide, or 12 percent of all greenhouse gases emitted by the sector, [9] while another report put fugitive emissions at 5.2% of world greenhouse ...
Heavily fertilized silage, particularly the ones produced from immature plants, generate a higher concentration of the gas within the silo. [23] Nitrogen dioxide is about 1.5 times heavier than air and during silage storage, nitrogen dioxide remains in the silage material. Improper ventilation may result in exposure during the leveling of the ...
This list of laboratory biosecurity incidents includes accidental laboratory-acquired infections and laboratory releases of lethal pathogens, containment failures in or during transport of lethal pathogens, and incidents of exposure of lethal pathogens to laboratory personnel, improper disposal of contaminated waste, and/or the escape of laboratory animals.
Chlorine gas poisoning is an illness resulting from the effects of exposure to chlorine beyond the threshold limit value. Acute chlorine gas poisoning primarily affects the respiratory system , causing difficulty breathing, cough, irritation of the eyes, nose, and throat, and sometimes skin irritation .
Animal sentinels must have measurable responses to the hazard in question, whether that is due to the animal's death, disappearance, or some other determinable aspect. [1]: 34 Many of these species are ideally unendangered and easy to handle. It is important that the species' range overlap with the range being studied. [15]