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sulfur dioxide | concentration
 concentration
chem. tiúchan
econ. comhchruinniú
environ. tiúchan; comhchruinniú
in ambient | air
 air
environ. aer

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 English thesaurus
sulfur dioxide
chem. SO2 (MichaelBurov)
refrig. R-764
sulfur dioxide: 7 phrases in 2 subjects
Ecology1
Environment6