Question

please clear my doubt.who clear my doubt with proof i gave 50 likes.....At what concentration of SO2 causes irritation of eyes.
options:-a) higher concentration
b) lowerconcentration
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Answer 1

Answer

higher concentration

Explanation

exposures to high levels of sulfur dioxide can be life-threatening . Exposure to 100 parts of sulfur dioxide per million parts of air (ppm) is considered immediately dangerous to life and health