Report of the Health Officer, Corporation of Madras Health Department.
- Madras (India). Health Department
- Date:
- [1951]
Licence: Public Domain Mark
Credit: Report of the Health Officer, Corporation of Madras Health Department. Source: Wellcome Collection.
185/206 page 59
![WATER ANALYSIS Sterilisation of water mains from August ’51 to March ’52. After Sterilisation. Chemical results Expressed in Parts per 100,000. % of samples where B.Coli is present in' 60 c.c. Ammomacal Nitrogen. | Albuminoid Nitrogen. i Absorbed Oxygen. © 0 N l-H Phosphate Highest recorded. 0*011 0*052 0*254 0*013 0*002 91% 0.013 0*047 0252 0*013 0*001 832 0*018 I 0-058 0*231 0*012 0*015 692 0*004 0053 0*210 0*007 0*015 V-*- O O 0^ 0*005 0*062 0*224 0*028 0-006 100% not done 0*243 0*379 0*006 822 not done 0*154 0*115 0*002 94% not done 0*154 0*115 0*002 942 not done 0*190 0*168 0-002 100% 0*001 0*042 0*191 0*050 0*002 Not CD © 5S <3 £ g O £ O © © w. © © fH © © © o © • i—t 3 O £ i JD i—( O o SH © -1-3 © -1-3 © m u © -1-3 m < m © O -1-3 Trace! 0*029 0*182 0*001 0*030 0*168 No Samples could no taps & fire hydrants on 0009 0*013 done 0*002] 88% 0*003 it feeds the booster be coll ected a the areas (it is 72;/ © U ^ © *4H o -<-= <4-1 © CO ■g T5 5 03 O -4-3 © © £ £ © _Q nd © -4-3 © O A ° O • •—H -1-3 -43 © © © CO 31 .i-h p-i '£ © © > -h> o m -21% -19% +29,r ■64% + 25% Nil s ther e were main since 20” main) 2 ©^ 2 ° 9 3+5 ° ^ £ © 03 o o ^ <0 -p 2 % 1~ £| o • r—I __ G © CD xs -e 8 $-i < © ^ > f-i o © -43 © © O © *43 £ © 42 .2 © ft r© £ © CO o s_, © ©^ -SO; -II ® J§ g o -43 © + 62 + 52 — 5% + 13 C -20% —3-3% +15-4% ©r© 03 -(.3 £ ^ O o © -4-3 © O © o © © © rH © 3 © O rH rH © l-H © •rH Q} *4H +2 O ^ . - © ■r^V rH ® ® © ?H © © O © .-4-3 ^ © ^ -4= O ^ o3 •t3 r© +< © 03 -4-3 © © o © CO © © > O rH CO r*-H O © fH © ’43 © -43 +3 o p~* Cu * ’ -I MS _ 77 1 /o + 44% +100% + 134% 28 fold increase 18 fold increase + 54 % + 54% + 14% — 5.5% + 28*6% —18*8%'](https://iiif.wellcomecollection.org/image/b31485005_0185.jp2/full/800%2C/0/default.jpg)
