Another significant source of mercury pollution is metallic mercury,
used in a number of commercial products and industrial processes. The
largest uses of metallic mercury globally are artisanal and small-scale
gold mining, the production of chlorine and/or caustic soda at
chlor-alkali facilities and PVC production where mercury is used as a
catalyst. Other significant uses include the manufacture of various
products such as switches and relays, button cell batteries, measuring
devices (such as thermometers and blood pressure cuffs) and lamps.
http://www.nrdc.org/international/ftoxic.asp
No comments:
Post a Comment