Air pollution Average air pollution read- | ings in central Christchurch . for the 24 hours ended 9 a.m. [ yesterday in micrograms per | cubic metre were:— Sulphur dioxide: 107, medium. ■ Smoke: 203, medium. Nitrogen oxides: 73, low. [ Levels are: Less than 80 ; micrograms, low; 80 to 250, medium; more than 250, high.
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Bibliographic details
Press, Volume CXIII, Issue 33252, 15 June 1973, Page 8
Word Count
50Page 8 Advertisements Column 1 Press, Volume CXIII, Issue 33252, 15 June 1973, Page 8
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