[Report of the Medical Officer of Health for Chislehurst] page 42

Chislehurst 1957

[Report of the Medical Officer of Health for Chislehurst]

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Table: Footscray County Primary School, Sidcup.Monthly deposit in tons per square mile during 1957.

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Footscray County Primary School, Sidcup.

Monthly deposit in tons per square mile during 1957.

	Jan.	Feb.	Mar.	Apr.	May	June	July	Aug.	Sept.	Oct.	Nov.	Dec.
Water (in rain in inches)	0.98	2.31	0.75	0.31	1.08	0.73	3.27	2.62	2.24	1.46	2.68	1.63
pH Value	5.44	5.22	6.42	6.92	7.70	8.02	7.60	6.82	6.32	5.56	5.98	5.47
Total water in soluble matter	4.11	3.22	3.37	6.74	7.18	7.73	6.30	5.80	5.59	5.06	8.62	3.50
Soluble in CS₂	0.05	0.09	0.04	0.10	0.06	0.08	0.12	0.10	0.06	0.11	0.06	0.07
Ash	2.94	2.24	2.54	5.20	5.39	5.85	4.64	4.27	4.13	3.81	6.72	2.45
Other combustible matter	1.12	0.89	0.79	1.44	1.73	1.79	1.55	1.43	1.40	1.14	1.84	0.97
Total water soluble matter	4.40	4.09	4.53	4.87	6.21	6.81	8.39	7.11	5.17	5.30	9.26	4.93
CA++	0.44	0.54	0.81	0.97	0.94	1.24	1.34	0.94	0.87	0.81	1.48	0.54
CI'	1.01	0.74	0.49	0.50	0.86	0.69	0.94	0.91	0.94	0.64	2.21	1.11
SO"₄	1.40	1.80	1.76	1.76	2.39	2.14	3.54	2.71	2.03	2.49	3.46	1.95
Total Solids	8.50	7.31	7.90	11.61	13.38	14.54	14.69	12.91	10.76	10.36	17.88	8.43
Sulphur dioxide (milligrams of sulphur trioxide collected per day by 100 sq. cms. of Batch A lead peroxide)	1.49	2.04	0.94	1.16	0.92	0.96	0.79	1.11	0.84	1.24	2.11	1.68