Soldering materials were one of the main causes of the lead-in-water scandal, according to the chairman of a review committee on fresh water quality in public estates.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/soldering-materials-could-be-behind-hong-kongs-lead-water-scare-says-review-committee
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/south-china-morning-post
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lead
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hong-kong
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects