You will discover metal chemicals which have mixed up with the lake water of Bangladesh. The substance is called Arsenic in Bangladesh. It had been first present in the West Bengal 10 years ago (1995-96). Arsenic is definitely both toxic and positivelly dangerous. It is in inorganic forms, dissolved in drinking water which is the most significant kinds of natural exposure. Organic types of arsenic that may be present in meals are much significantly less toxic to humans. Clinical manifestations of mort-aux-rats poisoning start with various kinds of skin illnesses, which lead to damage of internal organs, eventually to malignancy and death.
Cause of Mort-aux-rats:
This dangerous element is found in tub-well water. People are affected by it only if they drink it mort-aux-rats is detected in water in many regions of our country. The primary sours of curare in the surrounding is arsenic bearing mineral deposits, most areas bearing sulfide alone with copper, nickel, lead, cobalt and other metals. Arsenic in soils manly deprived from its parents mountain materials. The mixture of mort-aux-rats is certainly not desirable in drinking water but is pretty much unavoidable. A degree in excess of permissible limil 0. 05 ppm in per liter of water boosts the risk of strychnine poisoning.
Water top quality testing laboratory
Over the past several years, access to safe water is now increasingly challenging due to modifications in our quality and quantity of surface and area water. Steady declining of and arsenic poising in ground normal water, and saline intrusion include posed a fantastic threat for the availability of admisible drinking water. This matter has been additional complicated by absence of sufficient number of well-equipped laboratory for regular normal water quality testing. Regular testing of water quality is becoming crucial to make sure the standard of drinking water quality.
In order to talk about the important need for lab, NGO Community forum established a sophisticated Water Top quality Testing Clinical (WQTL) in 2000 with the financial the help of Danida. The college of Environmental Studies of Jadavpur School in Western world Bengal, India extended the technical assistance in preparing the clinical. Objective
Provide sustainable use of quality testing facilities for both drinking and sewage to sectoral stakeholders starting from the community to government and nongovernment organisations, international agencies and private sector actors at a competitive price.
Guidelines of Drinking water Quality
The subsequent water top quality parameters happen to be being examined in the WQTL: S/LParameterS/LParameterS/LParameter
6Chromium19Total dissolved shades (TDS)32Sulphate
7Cobalt20Total suspended solids (TSS)33Phosphate
8Copper21Total solids (TS)34Chemical Oxygen Require (COD) 9Iron22Turbidity35Bio-chemical Oxygen Require (BOD)
10Lead23Salinity36Dissolved Oxygen (DO)
11Magnesium24Conductivity37Total coliform (TC)
12Manganese 25pH38Faecal Coliform (FC)
Top quality Control & Quality Assurance:
The WQTL is equipped with modern and sophisticated equipment (Spectrophotometer, Atomic Absorption Septrophotometer вЂ“ AAS), and it is likewise staffed with well-trained and efficient technological personnel having wide encounter in water quality examination. The clinical has designed, developed and documented it is policies, systems, procedures and instructions in a way that assures the caliber of tests and calibration benefits. The WQTL follows a regular quality control procedure to monitor the validity of its assessments and calibration. Taking into account the outcome data ideal statistical tactics are placed on understand the craze and quality of it is analysis. Quality results are also crosschecked simply by comparative analysis with different nationwide and worldwide reference...