[Report of the Medical Officer of Health for Chislehurst] page 37

Chislehurst 1955

[Report of the Medical Officer of Health for Chislehurst]

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Table: The emission of industrial black smoke has not been the source of complaint during the year but the Clean Air Bill laid before Parliament, toward the end of the year, will, if passed, give further powers in this direction and secure some control over smoke from domestic premises.

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The emission of industrial black smoke has not been the source of complaint during the year but the Clean Air Bill laid before Parliament, toward the end of the year, will, if passed, give further powers in this direction and secure some control over smoke from domestic premises.

Monthly deposit in tons per square mile during 1955.
Water (in rain in inches)	2.36	1.31	0.94	0.67	3.30	1.81	0.036	0.77	2.38	3.43	0.26	1.72
pH Value	5.64	5.7	6.42	6.60	6.96	7.5	—	7.78	6.45	5.00	—	5.96
Total water in soluble matter	8.09	6.41	8.21	6.34	8.56	8.31	9.14	8.95	5.04	6.82	5.01	4.85
Soluble in CS,	0.08	0.10	0.13	0.17	0.11	0.25	0.03	0.08	0.14	0.11	0.06	0.11
Ash	5.89	4.74	6.51	4.75	6.32	6.26	6.84	6.77	3.42	4.92	3.68	3.75
Other combustible matter	2.12	1.57	1.56	1.42	2.13	1.80	2.27	2.11	1.48	1.79	1.27	0.99
Total water soluble matter	10.20	7.97	7.97	5.17	10.07	11.07	6.54	9.03	5.44	10.47	3.89	6.11
Ca + +	1.34	1.28	1.17	0.94	1.68	1.88	1.31	1.54	0.47	0.81	0.57	0.94
CI	1.44	1.02	1.17	0.54	0.97	0.84	0.49	0.70	0.64	1.41	0.70	1.07
so;	4.01	3.32	2.49	1.77	4.36	3.32	2.39	3.75	1.88	3.43	1.78	2.32
Total solids	18.30	14.38	16.18	11.50	18.63	19.38	15.69	17.98	10.48	17.29	8.91	10.95
Sulphur dioxide (milligrams of sulphur trioxide collected per day by 100 sq. cms. of Batch A lead peroxide)							0.76	0.68	0.85	1.35	1.75	1.38