Scientists from Tomsk Polytechnic University have developed a device for the rapid analysis of liquids on the content of hazardous substances -- such as heavy metals.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/new-device-detects-hazardous-substances-water
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/science-daily
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-metals
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality