posted on Jul, 29 2012 @ 06:01 PM
reply to post by TopherSnewo
And have you been breathing any AgI lately??
I would be pretty sure you've been breathign al sorts of carp exhausted from cars, trucks & industry - all of which pump millions of tons of
pollutants into the atmosphere.
I don't know what the total useage of AgI is worldwide - but apparently China used 6.5kg
or so in 2000
to try to manage snowfall around Beijing in 2011 - and tests subsequently found no residue in water reservoirs downstream of the
According to this paper
Of this amount, an estimated 65,000 kg were released fromphotographic developing, 54,000 kg from photographic manufacture, 5,000 kg frommetals
production, and the remainder from miscellaneous uses. An additional70,000 kg were estimated to be released from sewage treatment plants, 72,000
kgfrom urban runoff, and 438,000 kg from natural sources(e.g., soil erosion). Silver released in precipitation as a result of cloudseeding has
decreased and is not expected to contribute significant amounts towater (Scow et al. 1981).
Obviously 1978 whas a while ago now, and the comment about cloud seeding is robably no longer true, but then again all that photographic use is now
pretty much gone too I think!
These figures and some more modern but less extensive ones are also included, along with the following comments about bioaccumulation
Maximum concentrations of total silver recorded in field collections of living organisms, in milligrams of silver per kilogram dry weight, were
1.5 in liver of marine mammals (Szefer et al., 1994), 2 in liver and 6 in bone of trout from ecosystems receiving precipitation from silver
iodide-seeded clouds (Freeman, 1979), 7 in kidneys and 44 in liver of birds from a metals-contaminated area (Lande, 1977), 14 in marine algae and
macrophytes (Eisler, 1981), 30 in whole annelid worms (Bryan & Hummerstone, 1977), 110 in whole mushrooms (Falandysz & Danisiewicz, 1995), 133–185
in soft parts of clams and mussels near sewage and mining waste outfalls (Luoma & Phillips, 1988; ATSDR, 1990), and 320 in whole gastropods from South
San Francisco Bay (Luoma & Phillips, 1988). Silver concentrations in conspecifics from areas remote from anthropogenic contamination were usually
lower by 1 or more orders of magnitude. The accumulation of silver by benthic organisms from marine sediment is attributed, in part, to the formation
of stable complexes of silver with chlorine, which, in turn, favours the distribution and accumulation of silver (Ratte, 1999).
edit on 29-7-2012 by Aloysius the Gaul because: (no reason given)
edit on 29-7-2012 by Aloysius the Gaul because: (no