Quality, Standards and Testing

Water needed for human consumption, industrial purposes or other requirements must cater to certain minimum standards. The quality of any water is defined by its physical and chemical properties (characteristics). Physical properties include its appearance (colour, clarity and odour, perhaps also its taste) while the chemical properties refer to the constituents dissolved in it. Some of the physical properties are measurable and can be expressed in units of measurement while others like appearance, odour or taste are clearly subjective. However, all the chemical constituents can be measured accurately.

Drinking water must meet certain quality standards to safeguard the health of the people. The permissible and desirable limits of various parameters in drinking water have been detailed as per the Bureau of Indian Standards (BIS) standard specifications for potable water. These parameters are included in BIS-10500-1991. The various parameters covered include colour, odour, pH, total dissolved solids, hardness, alkalinity, elemental compounds such as iron, manganese, sulphate, nitrate, chloride, fluoride, arsenic, chromium, copper, cyanide, lead, mercury, zinc and coliform bacteria. The tolerance limits for inland surface waters for various classes of water use have been published by the Central Water Commission. Per ISI-IS: 2296-1982, the tolerance limits of parameters are specified as per classified use of water depending on various uses of water ranging from Class A to Class E.

What does the water that one drinks contain, what substances are dissolved in it and what are their safe limits? What are the issues that affect water quality? For more detailed information on all this, please read our FAQs on Rules, Regulations & Standards concerning water and Equipments used to measure water quality and quantity

  • Estimates suggest that about 10 million Indians are affected by fluorosis, a sickness associated with the consumption of increased concentrations of fluoride, mostly through water. Bones get weakened due to excessive accumulation of fluoride in them which results in increased hip and wrist fractures...
    Amita Bhaduriposted 23 hours 23 min agoread more
  • Kerala floods take 38 lives, severe loss reported On August 9, gates of Idukki Dam, an arch dam located across the Periyar river, were opened due to incessant rainfall in the region. The opening of the dam gates has caused heavy floods in the state claiming nearly 38 lives. At least 30,000 people s...
    swatiposted 4 days 22 hours agoread more
  • “The recent scare due to the detection of formalin-laced fish across Goa, Kerala, Assam, Manipur, Nagaland and Meghalaya points to a link between water quality and food safety. Fish traders find it cost-effective to use formalin, a carcinogen, instead of ice to prevent the decomposition of fish du...
    Amita Bhaduriposted 1 week 4 days agoread more
  • Yamuna river water quality improves, thanks to floodwater: Experts According to experts, the Yamuna river is at its healthiest state this year. This has been attributed to the improved water quality in the river due to a rise in the inflow of floodwaters. Increased flow in water leads to more oxyge...
    swatiposted 1 week 5 days agoread more
  • Hi The borewell water in our home shows a TDS of 1150. Could you recommend a solution for lowering it to less than 100. Its causing unsightly stains on the floor, walls, sinks, taps etc. Your advice would be greatly appreciated. This is for my home of 8 persons.
    Anonymous (not verified)posted 1 week 6 days agoread more
  • My first trek in the Himalayas was a transcendental experience. Even a decade after, I remember the intense beauty of every vignette I came across. That’s why I was excited about the Himalayan Cleanup, held on May 26 this year. More than 15,000 people participated in an attempt to spread awareness...
    arathiposted 1 week 6 days agoread more
  • How to establish a mineral-water-bottleling project in Erode district of Tamil Nadu, India? And inform me about the testing & treatment places nearby.
    Anonymous (not verified)posted 2 weeks 2 days agoread more
  • Groundwater is a major source of water for a large number of Indians with 66 percent rural households and 27 percent urban households directly depending on it for drinking purposes, as per Census 2011. There is a greater daily dependence on groundwater for non-potable uses. Almost 75 percent of Ind...
    Amita Bhaduriposted 1 month 4 days agoread more
  • Basubai is a mother of three young children—Ajay (9), Manju (11) and Sonu (13). She is married to Mukesh Singh in Jamniamota village in Bakaner block in Dhar district, Madhya Pradesh. Annoyed by the yellowing and staining of the teeth of her children, she would always complain to her husband ...
    arathiposted 1 month 1 week agoread more
  • The availability of potable drinking water remains a challenge in rural areas in several parts of the country. Commercially available water filters are costly, need electricity to run and reverse osmosis (RO)-based purifiers waste a lot of water. Now Indian scientists have developed a unique low-cos...
    arathiposted 1 month 1 week agoread more
  • Up until two decades ago, the main sources of drinking water in Rajasthan included surface water from perennial ponds, reservoirs, lakes, dams, rivers and streams with borewells and tubewells used sparingly and only in remote areas. All this changed when guinea worm infections started appearing in t...
    aarti kelkar kh...posted 1 month 3 weeks agoread more
  • Dear Sir, My village is situated in Uttarakhand in the Himalayan region on a hill in Chamoli district . I want to setup a bottled drinking water plant. It will be give employment to local people and everyone knows that all water comes from the Himalaya. Many young boys in our area are unemployed an...
    gerhwalposted 1 month 3 weeks agoread more
  • Weather forecasts from India Meteorological Department (IMD) are all set to undergo major improvement with the commissioning of two very high-resolution weather prediction systems.  The new systems would have a resolution of 12-km grid scale, marking a big jump from the present level of 23 km....
    arathiposted 2 months 2 weeks agoread more
  • There seems to be no end to the drinking water crisis in the Bemetara district in Chhattisgarh. It is only becoming worse with every passing day. More than 40 percent of all the hand pumps installed in the district have run dry due to the depletion of groundwater level.   This situation h...
    makarandpurohitposted 2 months 3 weeks agoread more
  • Hello, Every time it rains, I see huge rain water gushing through the roads and drains of Bangalore city. The entire water gets wasted as it reaches the sewage and flows out of city as sewage water. If we can stock this running water across the areas, it should recharge the depleting ground water a...
    Anonymous (not verified)posted 3 months 4 days agoread more
  • Farhanuddin was just five years old when a pain in his knee began bothering him. It was 2013. Slowly, his legs began to change shape. They got so badly deformed that it began to affect his everyday life. He was gloomy and tired most times and had trouble walking. His parents thought that lengra bhoo...
    Amita Bhaduriposted 3 months 1 week agoread more
  • Despite making sanitation a national priority with Swachh Bharat Mission, 50 percent of India defecated in the open till 2014. The goal to make India open defecation free by 2019 seemed ambitious. The government provided funding but it also sought active participation from the corporate sector. Comp...
    Amita Bhaduriposted 3 months 2 weeks agoread more
  • India’s sanitation crisis involves huge cost. Transforming the country’s sanitation and waste management by 2019 is tall order. “Swachh Bharat Mission, the most ambitious cleanliness campaign in Indian history could well be the most expensive failure in recent times,” says Naina Lal Kidwai, ...
    Amita Bhaduriposted 3 months 2 weeks agoread more
  • Nanotechnology deals with particles that are several thousand times smaller than the human hair, and it is being put to use in a variety of applications such as drug delivery and diagnostic tests.  A group of Indian researchers has now developed a simple technique for deriving nanoparticl...
    arathiposted 3 months 2 weeks agoread more
  • National Green Tribunal forms commission to inspect Bengaluru lakes Unhappy with the Karnataka government’s reply regarding the revival of the Bellandur, Varthur and Agara lakes, the National Green Tribunal set up a commission comprising officials and experts to inspect Bengaluru’s polluted lak...
    seetha@indiawat...posted 4 months 4 days agoread more

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A new device makes defluoridation simple and easy to execute in remote areas where fluorosis is found to be severe.

Estimates suggest that about 10 million Indians are affected by fluorosis, a sickness associated with the consumption of increased concentrations of fluoride, mostly through water. Bones get weakened due to excessive accumulation of fluoride in them which results in increased hip and wrist fractures. Dental enamel gets eroded. The fluoride toxicity can also affect the kidneys and suppress the functioning of the thyroid. In children, neurodevelopmental disorders are noticed.

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News this week

Kerala floods take 38 lives, severe loss reported

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There is a need for better regulation and monitoring to bring toxin-free food to the Indian market.

“The recent scare due to the detection of formalin-laced fish across Goa, Kerala, Assam, Manipur, Nagaland and Meghalaya points to a link between water quality and food safety. Fish traders find it cost-effective to use formalin, a carcinogen, instead of ice to prevent the decomposition of fish during transportation to distant markets.

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Regions

News this week

Yamuna river water quality improves, thanks to floodwater: Experts

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Hi

The borewell water in our home shows a TDS of 1150. Could you recommend a solution for lowering it to less than 100. Its causing unsightly stains on the floor, walls, sinks, taps etc. Your advice would be greatly appreciated. This is for my home of 8 persons.

Topics

Sub-Categories

Regions

The Himalayan Cleanup where people collected and sorted trash threw up useful information on the main culprits behind trash piles in the Himalayas.

My first trek in the Himalayas was a transcendental experience. Even a decade after, I remember the intense beauty of every vignette I came across. That’s why I was excited about the Himalayan Cleanup, held on May 26 this year. More than 15,000 people participated in an attempt to spread awareness about plastic pollution in the Himalayas.

Attachments

Topics

Sub-Categories

Regions

How to establish a mineral-water-bottleling project in Erode district of Tamil Nadu, India? And inform me about the testing & treatment places nearby.

Topics

Sub-Categories

Regions

A study points out that pit latrines with onsite sanitation systems are a source of groundwater contamination.

Groundwater is a major source of water for a large number of Indians with 66 percent rural households and 27 percent urban households directly depending on it for drinking purposes, as per Census 2011. There is a greater daily dependence on groundwater for non-potable uses.

Topics

Sub-Categories

Regions

What Basubai and her children needed to fight fluorosis was access to safe drinking water.

Basubai is a mother of three young children—Ajay (9), Manju (11) and Sonu (13). She is married to Mukesh Singh in Jamniamota village in Bakaner block in Dhar district, Madhya Pradesh. Annoyed by the yellowing and staining of the teeth of her children, she would always complain to her husband that the children do not listen to her. They do not clean their teeth properly which has resulted in this condition.

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Regions

With no electricity required and no wastewater, the new purifier works even under cloudy conditions and diffused solar radiation.

The availability of potable drinking water remains a challenge in rural areas in several parts of the country. Commercially available water filters are costly, need electricity to run and reverse osmosis (RO)-based purifiers waste a lot of water. Now Indian scientists have developed a unique low-cost solar water purifier that can address all these concerns.

Topics

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Regions

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