re SO2
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So are the images depicting just regular smog or crematoriums burning?
Do you have control images?
Historical photos of Hong Kong and Shanghai tell the story. A continuous brown haze. Historical of LA and Denver, also. IN sum, the images show an increase in SO2, but not the extent of that increase. The source of those images would have context from the recent past.
Slide (because I am currently calculating emissions for my employer)...
SO2 is not the only ingredient. Combustion products are regulated by the CAA. Volatile Organics (VOC), Nitrogen Oxides (NOx), Sulfur Oxides (SOx), Carbon Monoxide (CO), Particulates (PM) and Ozone (O3) contribute.
O3 is not regulated because it occurs naturally without oxidation (burning). A miniscule amount can be created anthropogenically but it ranges in the PPBT area.
Here is the crux of the industry’s beef with Greenhouse Gas (GHG) regulation: (1) it does not advance the intent of the CAA (smog, combustion products) but targets CO2 and CO2e (Methane, SF6, etc.) of ANY source Nat-gas well maintenance and flatulence are large Methane additives. CO2 is released from respiration of all creatures as well as temperature liberation from oceans and seas.
(2) The regulation of GHG was NEVER Legislated but promulgated by the EPA...with NO MANDATE directly from Congress or the people. At the time of promulgation, there was no confirmed scientific reason to regulate (that would come later from EPA $$$upported research).