Environmental and industrial Flashcards
when did the first law to protect workers against asbestos come into effect?
1931
do alkyl mercury compounds penetrate the blood-brain barrier
yes
what organ does methylmercury readily penetrate
placenta
early symptoms of chronic poisoning with alkyl mercury compounds
parathesia, slurred speech, difficulty swallowing and visual disturbances
what group of proteins does methylmercury bind to
thiol (SH) groups
does elemental mercury vaporize at room temperature
yes
is elemental mercury toxic to the CNS
yes
why do asbestos particles persist in the lungs
poor clearance by the mucociliary escalator and pulmonary phagocytes
what does the inflammatory reaction caused by asbestosis result in
pulmonary fibrosis
what is mesothelioma cancer of
mesothelium
what is humans main exposure to mercury
fish
what is another potential source of human exposure to mercury
dental amalgams
where and when did an alkylmercury poisoning outbreak occur
1970s Iraq
Where did the 1965 methylmercury poisoning occur
Japan
where is mehtylmercury excreted from the liver to
bile
