Important Human Impacts on the Mangroves

                                    Pesticide and Heavy metal values in Sundarbans waters

http://www.indiancoastguard.nic.in/Indiancoastguard/NOSDCP/Marine%20Environment%20Security/sundarbans.pdf

This shows the amount of pesticide in the Sundarban waters and it shows the human impacts on the ecosystem. This is important because of the sediment run-off unto the waters build up excess nutrients 

Water Quality in the Sundarbans 

http://www.indiancoastguard.nic.in/Indiancoastguard/NOSDCP/Marine%20Environment%20Security/sundarbans.pdf

Even though there shouldn't be high amounts of sediment and heavy metal in the water, there is reported high levels of these in the Sundarbans

Citation:
"Sundarbans." Indian Coast Guard. N.p., n.d. Web. 4 Dec. 2012. <www.indiancoastguard.nic.in/Indiancoastguard/NOSDCP/Marine%20Environment%20Security/sundarbans.pdf>.