London's Pulse: Medical Officer of Health reports 1848-1972

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Islington 1880

[Report of the Medical Officer of Health for Islington, Parish of St Mary]

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WATER ANALYSIS.

In the following tables I have stated the analyses made monthly of the New River Company's water, and recorded by me during the year.

Analyses of Samples taken from the Mains of the Company.

1880.Total Solid Matter per Gallon.Chloride of Sodium.Nitrogen as Nitrates.Nitrogen as Ammonia.Oxygen required by Oxidisable Matter.Degree of Hard. ne88.Degree of Hardness after boiling quarter of an hour.
January23.01.6520.1950.0000.03416.0°3.3°
February21.831.6520.2100.0000.008215.4°3.7°
March21.031.6520.1650.0000.04016.0°3.3°
April19.161.5340.1510.0000.02113.8°3.8°
May18.011.4160.1440.0000.00714.6°3.0°
June20.181.5340.142 10.0000.01214.5°2.8°
July19.221.6520.1370.0000.00415.0°2.8°
August19.731.6520.1420.0000.???8014.8°2.8°
September19.431.770.1260.0000.01415.0°3.0°
October21.741.8880.1350.0000.04815.4°2.4°
November22.581.770.1880.0000.04015.4°2.4°
December23.351.6520.1880.0000.04017.6°2.4°
Average20.771.6540.1600.0000.???2916.3°3.0°
Analyses of Samples taken from the Cab-rank at Islington Green.
1880.Total Solid Matter per Gallon.Chloride of Sodium.Nitrogen as Nitrates.Nitrogen as Ammonia.Oxygen required by Oxidisable Matter.Degree of Hardness.Degree of Hardness after boiling quarter of an hour.
January22.851.7110.1850.0000.02416.0°3.2°
February22.141.65201950.0000.04115.4°3.5°
March22.031.5340.1500.0000.04016.0°3.3°
April19.591.5340.1510.0000.01613.8°3.3°
May17.721.4160.1370.0000.01614.6°3.0°
June20.181.5340.1420.0000.01214.3°3.0°
July19.081.6520.1370.0000.02014.8°3.8°
August20.141.6520.1420.0000.02814.8°2.4°
September20.781.779.1350.0000.05615.4°3.0°
October21.391.6520.1350.0000.02815.4°2.4°
November22.911.6520.1980.0000.00415.4°2.4°
December23.211.6520.1880.0000.05217.6°3.3°
Average21.001.6170.1580.0000.02516.3°3.0°