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Chemical Examinations (cont'd)
All Thames derived
Magneisium as Mg
5
Sodium as Na
24.0
Potassium as K
5.4
Chloride as CI
32
Phosphate as Po4
2.1
Sillicate as Sio2
9
Sulphate as So
58
Natural Fluoride as F
0.25
Surface active material as Manoxol oT
0.02
Turbidity units
0.1
Colour (Burgess units)
11
pH value
7.9
Electrical Conductivity (micromhos)
550
Bacteriological Examinations:
All Thames derived
Number of samples
3,698
Agar plate count per ml: 20-24 hrs. at 37ºC
12.9
Coliform count: per cent samples negative
in 100 ml.
99.89
E. coli-count: Per cent samples negative in
100 ml.
100.0
Clean Air Acts, 1956 and 1968
Smoke Control Areas
Hammersmith completed its phased Smoke Control Programme on 1st.
June, 1967, having achieved the distinction of being the first London
Borough to do so. The programme covered 3,995 acres, involving some 72,599
premises.
The final costs have not yet been compiled but up to 31st.March,
1969, the total cost of implementing smoke control was £355,653. With
an estimated population of 192,810 this expenditure works out at about
£1.16.10d. per head or 3/6d. a year per head since 1958 when the smoke
control programme began. This seems an extremely small price to pay for
such obvious benefits to personal and environmental health.
Hammersmith (Suspension) of Smoke Control Order, 1968
Following a request from the Greater London Council to waive No.8
Smoke Control Order in respect of a block of flats, Nos. 1-72 Creighton
Close, W.12., owing to modernisation proposals, the Ministry of Housing
and Local Government agreed in January,1968,to make a suspension order
under Section 11 (7) of the Clean Air Act, 1956, for a period expiring on
the 31st,December, 1969. This order did not apply to any other premises in
the No.8 Smoke Control Area. Works have steadily proceeded since.
Supplies of Smokeless Fuels
Towards the end of 1969 some shortages of solid smokeless fuels
occurred, but these did not give rise to any fuel crisis. However, due
to the change-over to natural gas, the Gas Council has been closing
a number of gas works throughout the country, resulting in the traditional
supplies of gas cokes being less readily available.
B.16