"See also the Canadian Journal of Earth Sciences, VOl 4, 1967, which shows Aluminum found in rain in the range 520 ug/L to 1,120 ug/L, over 13 different tests. This shows that the results in 1967 (when presumably there were no chemtrails) are pretty much the same as the results the WITWATS is getting. Nothing unusual." Source: http://contrailscience.com/what-in-the-world-are-they-spraying/
Well, as we know now weather modification programs are going on already for 60 years. And chaff is nothing really new.
In comparison with stated normal amounts of aluminum found in the air.
(Quote) “…..Levels of aluminum in the air generally range from 0.005 to 0.18 micrograms (1 microgram, ?g, equals a millionth of a gram, 1 gram equals 0.0022 pound) of aluminum per cubic meter of air (0.005–0.18 ?g/m3 or 0.00018 mg/L) , depending on location, weather conditions, and level of industrial activity in the area. Most of the aluminum in the air is in the form of small suspended particles of soil (dust). Aluminum levels in urban and industrial areas may be higher and can range from 0.4 to 8.0 ?g/m3 ….” http://www.eoearth.org/view/article/155461/
