Air pollution
Average central city readings taken at the Reserve Bank building for the 24 hours ended 9 a.m. yesterday were:— Saturday Sulphur dioxide: 75, medium. Smoke: 181, high. Nitrogen oxides: 183, medium. Sunday Sulphur dioxide: 38, medium. Smoke: 43, low. Nitrogen oxides: 41, low. The readings are in micrograms per cubic metre. Levels are: Smoke, less than 40, low; more than 120, high. Sulphur dioxide, less than 40, low; more than 200, high. Nitrogen oxides, less than 100, low; more than 250, high.
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https://paperspast.natlib.govt.nz/newspapers/CHP19740520.2.100
Bibliographic details
Press, Volume CXIV, Issue 33538, 20 May 1974, Page 12
Word Count
84Air pollution Press, Volume CXIV, Issue 33538, 20 May 1974, Page 12
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Acknowledgements
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