Furthermore, in contrast to closed-systems, the open-system perspective does not assume that the environment is static. Instead, change is the rule rather than the exception. Consequently, investigation of environmental stability and propensity to change is a key task of a company, making the activities of an organization contingent on various environmental forces.
Methylmercury is a type of mercury, a metal that is liquid at room temperature. A nickname for mercury is quicksilver. Most compounds containing mercury are poisonous. Methylmercury is a very poisonous form of mercury. It forms when bacteria react with mercury in water, soil, or plants. It has been used to preserve grain that is fed to animals. Methylmercury poisoning has occurred in people who have eaten meat from animals that ate grain that was treated with this from of mercury.
1 Urine is used to test for metallic mercury and inorganic forms of mercury, but it cannot be used to determine exposure to methyl mercury. 2  Hair testing may be useful to detect methyl mercury exposures that occurred several months previously, but hair testing is relatively complex and is not used frequently.ercury testing may be ordered when a person has signs and symptoms suggesting excessive exposure to mercury. Acute signs and symptoms may include: 1  Burning in the mouth and lungs. 2  Cough, difficulty breathing, chest tightness. 3  Difficulty urinating and decreased urine output. 4  Nausea, vomiting, diarrhea, or abdominal cramping.