A Treatise on Hygiene and Public Health: With Special Reference to the TropicsScientific Publishing Company, 1953 - 787 sider |
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Side 42
... lead . Since lead is never found in any natural water its presence must be due either to the use of lead pipe or to storing water in lead cisterns . The amount of lead which can be taken without producing any untoward effects on the ...
... lead . Since lead is never found in any natural water its presence must be due either to the use of lead pipe or to storing water in lead cisterns . The amount of lead which can be taken without producing any untoward effects on the ...
Side 43
... lead . Thus polluted shallow well water containing excess of CO2 tends to dissolve the coating of lead carbonate found in the pipe or vessel . acid . 3. Upland surface waters containing humic or ulmic 4 . Neutral distilled water , and ...
... lead . Thus polluted shallow well water containing excess of CO2 tends to dissolve the coating of lead carbonate found in the pipe or vessel . acid . 3. Upland surface waters containing humic or ulmic 4 . Neutral distilled water , and ...
Side 111
... Lead . - Lead is a cumulative poison and being an im- portant article of commerce it is a most common and insi- dious industrial poison . It gains entrance into the system by ( a ) swallowing minute particles when it is converted in the ...
... Lead . - Lead is a cumulative poison and being an im- portant article of commerce it is a most common and insi- dious industrial poison . It gains entrance into the system by ( a ) swallowing minute particles when it is converted in the ...
Innhold
INTRODUCTORY | 1 |
Preventive MedicinePublic Health Administration | 20 |
CHAPTER II | 77 |
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Vanlige uttrykk og setninger
acid amount animal areas bacilli bacteria becomes Bengal beri-beri blood body boiling carbohydrate carbon carried carriers cause cent child chlorine cholera colour contains death diet digestion diphtheria disinfection drain dust dysentery effect eggs epidemic excreta factor faeces female fever filter filtered water flea ghee give heat hygiene immunity important inches India infection infectious diseases intestinal kala-azar known large number larvae latrines leprosy less malaria material measures mental method milk mortality mosquitoes necessary night-soil nutritive occurs organic matter parasites patient period persons pipe plague poisoning pollution population prevent protein public health removed rice salts sanitary sewage sewer skin slow sand filters small-pox soil solution spirochaetes supply surface symptoms tank temperature tion treatment tropical tuberculosis typhus urine usually vaccine vegetable ventilation virus vitamin washing water-supply