4 replies to this topic

[Hans van der Maarel]

Hi everybody,

I'm looking for surface water quality data for India. Intended purpose is a thematic map on state or district level, educational purpose. Does anybody have any leads as to where I can find data?

Edited by Hans van der Maarel, 17 September 2008 - 10:10 AM.
meant to say *surface* water

[Mohammad Hassan]

Hi Hans,

Hope you can get something here http://cgwb.gov.in/index.html



hassan

[Hans van der Maarel]

Hope you can get something here http://cgwb.gov.in/index.html

Thanks, but I had actually meant to say *surface* water, sorry about that.

[frax]

Hans,

Water quality is also quite a complicated concept, with many aspects: BOD, chemicals, metals, pH, biochemical, suspended solids etc. And surface water is not so easy either - would it be measurements at stations that are interesting, the status of drainage basins. Measuring in lakes and rivers would be quite different. I might not sure what you are looking for, but making maps saying "here it is good, here it is bad" is not so easy/obvious - especially from the perspective of drinking water, since groundwater/precipitation can be used as well.

Googling turns up some stuff, that I am sure you can find too, which might be useful - I saw, among other things, a report with stats per drainage basin.

Here are some other assorted links, not checked for relevancy...
Environmental Data Bank
http://www.cpcb.nic....ater/Water.html
STATUS OF WATER QUALITY IN INDIA-2006
http://www.cpcb.nic....ata_statics.phpUNEP/GEMS water
IWMI Krishna basin
India water portal
WATER QUALITY MONITORING IN INDIA- ACHIEVEMENTS AND CONSTRAINTS
GEMS water stations
IWMI Data Storehouse Pathway

[MapMedia]

Hi everybody,

I'm looking for surface water quality data for India. Intended purpose is a thematic map on state or district level, educational purpose. Does anybody have any leads as to where I can find data?

Hans, you might use watersheds (hydrological drainage area) as your mapping unit, and rate them by the average level.

To put it into perspective, you might use India's water quality objectives but if you have too much trouble getting these, you could use some more universal levels, especially for physical and chemical properties (BOD, turbidity, pH, temperature, electrical conductivity).

Good luck with the data hunt!