Determination of Sulfur Dioxide in Ambient Air.

Sulfur dioxide was one of the first air pollutants to cause widespread concern and one of the first to be measured. In the past, SO2, in combination with smoke, was responsible for many of the air pollution disasters, including the infamous London smog of 1952. It can cause health problems on its own, in combination with smoke or in the form of sulfate aerosol. Furthermore, SO2 is a precursor of sulfuric acid which is a major contributor to acid rain. It can also corrode stone, metals and other building materials, as well as having a direct effect on vegetation.
Major source of SO2 are coal and oil fired power stations, smelters, sulfuric acid manufacturing plants and diesel powered vehicles. Monitoring of ambient SO2 is routinely carried out by government agencies at many urban sites. Absorption of SO2 into a reagent solution followed by subsequent chemical analysis is a standard method of measurement.
References
Practical Environment Analysis; Redojevic M, Bashkin V N.
Standard Method (American Public Health Association)

[@jasmindongare6999]

Thank you sir... My clg is still closed couldn't perform this really interesting practical but had to study it for online practical exam.... Thanks for giving me some clarity ✌🏼✌🏼

[@khushalrawat4034]

Sir please make video stack NOx monitoring

[@bholenathsblessings9391]

Thank you sir

[@rahulaarakh7265]

Please also upload the video of NOx analysis.

[@shortandsweet2767]

❤

[@kanchanuphade7112]

Why formaldehyde is used in amb.So2

[@ashishkumar0651]

Please make a video on calibration factor

[@aksingh2913]

How you put value of B

[@ashishkumar0651]

Nice sir but how to calculate calibration factor

[@mamtamurmu2747]

which brand of spectrophotometer you used?

[@shashankpandey2728]

HACH