Oxides

... The most important gas which leads to acidification is sulfur dioxide. Emissions of nitrogen oxides which are oxidized to form nitric acid are of increasing importance due to stricter controls on emissions of sulfur containing compounds.

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... in our foods, packaging, personal care products (people are covering their bodies with sunscreens that inclue nano sized titanium dioxide and zinc oxides), clothing, electronic devices, and has been found by industrial toxicologists coming out of waste water treatment plants (nanosilver) and inside ...

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oxygen was not produced in large amounts by plants so they would be locked up in oxides and water.

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the reason for adding afterwards is that the methylene blue can tehrmally decompose into different oxides then it won't work

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... Oh just bear this in mind: METHYLENE BLUE CASRN: 61-73-4 Hazardous Decomposition: When heated to decomp ... emits very toxic fumes of /nitrogen oxides, sulfur oxides and hydrogen chloride/. [Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van ...

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