Search results
Results From The WOW.Com Content Network
Acute toxicity is distinguished from chronic toxicity, which describes the adverse health effects from repeated exposures, often at lower levels, to a substance over a longer time period (months or years). It is widely considered unethical to use humans as test subjects for acute (or chronic) toxicity research.
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. [1] Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a substructure of the organism, such as a cell (cytotoxicity) or an organ such as the liver (hepatotoxicity).
Other forms of arsenic toxicity in humans have been observed in blood, bone marrow, cardiac, central nervous system, gastrointestinal, gonadal, kidney, liver, pancreatic, and skin tissues. [71] The acute minimal lethal dose of arsenic in adults is estimated to be 70 to 200 mg or 1 mg/kg/day. [80]
Peake identifies two categories: acute and chronic ecotoxicity (Peake, 2016). Acute ecotoxicity refers to harmful effects that occur from exposure to a hazardous substance for up to 15 days. These effects are caused by the interaction of the chemical with an organism's cell membranes, often leading to cell or tissue damage or death (Peake, 2016).
Acute radiation syndrome (ARS), also known as radiation sickness or radiation poisoning, is a collection of health effects that are caused by being exposed to high amounts of ionizing radiation in a short period of time. [1] Symptoms can start within an hour of exposure, and can last for several months.
(For example, molds. Mold spores may be found both indoors and outdoors.) Although it is possible that an environmental toxin can be produced with human intervention (such as pesticides) it is still considered natural. Injuries due to chemical exposure are often more severe due to the nature of these highly toxic substances.
In developing countries, such as Sri Lanka, pesticide poisonings from short-term very high level of exposure (acute poisoning) is the most worrisome type of poisoning. However, in developed countries, such as Canada, it is the complete opposite: acute pesticide poisoning is controlled, thus making the main issue long-term low-level exposure of ...
Acute inhalation injury may result from frequent and widespread use of household cleaning agents and industrial gases (including chlorine and ammonia).The airways and lungs receive continuous first-pass exposure to non-toxic and irritant or toxic gases via inhalation.