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77
Sulphur dioxide in parts
per million.
Date. Volume of Time of
air examined. Experiment.
Volumetric. Gravimetric.
1932. cub. ft. hrs. mins.
3-4 February 63 24 0 0.41 0.44
4 April 156 24 0 0.119 0.13
27-28 April 202 24 0 0.093 0.092
5-6 May 85 23 0 0.099 0.120
12-13 May 103 24 25 0.085 0.085
19-20 May 77 24 0 0.067 0.044
2-3 June 107 24 0 0.071 0.094
9-10 June 62 24 0 0.063 0.054
16-17 June 92 24 0 Nil 0.036
23-24 June 55 24 0 Nil Insufficient
barium
sulphate to
weigh
30 June to 1 July 112 23 30 0.024 0.030
7-8 July 53 27 0 0.054 0.064
14-15 July 99 23 30 0.038 0.034
21-22 July 153 24 0 0.051 0.053
28-29 July 110 24 0 0.055 0.061
4-5 August 55 24 0 0.078 0.123
11-12 August 116 24 20 0.167 0.146
18-19 August 116 24 0 0.128 0.110
26-27 August 55 24 5 0.100 0.090
1-2 September 160 23 30 0.050 0.042
8-9 September 117 24 30 0.048 0.041
15—16 September 143 24 10 0.156 0.154
22-23 September 100 24 3 0.119 0.135
29-30 September 128 24 25 0.113 0.119
6—7 October 93 25 15 0.109 0.114
13-14 October 88 24 0 0.108 0.134
20-21 October 68 27 45 0.133 0.174
28-29 October 149 23 45 0.172 0.182
3-4 November 183 23 0 0.091 0.111
10-11 November 82 24 10 0.245 0.227
17-18 November 162 24 0 0.188 0.177
24—25 November 155 24 0 0.187 0.207
1—2 December 104 25 30 0.213 0.206
8-9 December 118 24 15 0.205 0.229
15—16 December 114 24 15 0.183 0.193
22—23 December 152 22 45 0.113 0.088
29-30 December 150 23 45 0.156 0.158