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

  • 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 3 weeks 23 hours 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 4 weeks 23 hours 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 1 month 1 week 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 1 month 2 weeks 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 1 month 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 1 month 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 1 month 3 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 2 months 1 week agoread more
  • KSPCB says Cauvery water can be used for drinking after conventional treatment A report prepared by the Karnataka State Pollution Control Board (KSPCB) has clarified that water from River Cauvery isn’t as bad as it is made out to be. The report stated that the water can be classified under C...
    seetha@indiawat...posted 2 months 1 week agoread more
  • In a significant input for the growing debate on global climate change, a study by researchers at the Dehradun-based Wadia Institute of Himalayan Geology (WIHG) has found that there is a remarkable increase in the concentration of black carbon in the atmosphere near the pilgrim town of Gangotri in U...
    arathiposted 2 months 1 week agoread more
  • Fluorosis continues to be a regional issue in Telangana to this day, even decades after the first cases were discovered in Nalgonda in 1937. More than three lakh people in the district are affected with skeletal and dental fluorosis, a stigma that has stuck for generations. Excessive fluor...
    Amita Bhaduriposted 2 months 1 week agoread more
  • In 2010, nine-year-old Kailash from Miyati village, Jhabua developed symptoms of skeletal fluorosis. Fluorosis, which affects millions of people in India, is a health issue caused due to high fluoride content in drinking water. Skeletal fluorosis is marked by deformed bones. It affected all aspects ...
    Amita Bhaduriposted 2 months 1 week agoread more
  • Hello, We have extremely hard water of TDS 1500 and hardness 700 mg/ltr. We have a softener installed but it is not giving satisfactory results . A local technician informed us that softeners do not work with well water with this high hardness. Is this true? What is the solution for this? We have a...
    Anonymous (not verified)posted 2 months 1 week agoread more
  • It is a fairly common practice among people to buy bottled drinking water while travelling in India with the hope that it will minimise the risk of getting ill due to contaminated water. But is this water safe to drink? Recent evidence shows that as high as three out of 10 units of the packaged dri...
    aarti kelkar kh...posted 2 months 4 weeks agoread more
  • Rabindra Kumar Jena, the Member of Parliament (MP) from Balasore, Odisha knew that something was wrong with the health of people in a part of his constituency but he could not put his finger to it. By sheer chance, in 2015, he got to know that this seemed to be related to excessive fluoride in water...
    Amita Bhaduriposted 2 months 4 weeks agoread more
  • On the completion of five successful consecutive editions of IFAT India, IFAT India has now established itself as India's leading trade fair for Water, Sewage, Solid Waste and Recycling. This show will provide opportunities to the attendees to display their products, technologies and new innovations...
    aarti kelkar kh...posted 3 months 1 day agoread more
  • Farmers anxious as government stops water supply from the Sardar Sarovar dam for irrigation Following the Gujarat government’s decision to stop supplying water from the Sardar Sarovar dam for irrigation, farmers in the region are a concerned lot. With crops all set to ripen, lack of canal water s...
    seetha@indiawat...posted 3 months 5 days agoread more
  • Kaudikasa is a small village with a population of just 350 people in the Ambagad Chowki block of the Rajnandgaon district in Chhattisgarh. Despite its small size, Kaudikasa village has been in the news for all the wrong reasons. Severe health problems have been reported from the village, thanks to a...
    makarandpurohitposted 3 months 1 week agoread more
  • Hi, I am from Bangalore and we have purchased apartment in a residential complex where ground water is green/brown color. This is a newly built apartment which is housing 80 flats, and all the residents are facing the same issue and are very much worried. We had got the water tested from a lab in B...
    Anonymous (not verified)posted 3 months 2 weeks agoread more
  • Located in the Hauz Khas urban village in the busy metropolis of Delhi is an exquisitely landscaped lush green patch. This deer park, with spotted deer, peacocks and numerous birds, leads to an incredibly beautiful lake. As per a plaque at the site, the lake is a part of the medieval (13th century) ...
    Amita Bhaduriposted 3 months 2 weeks agoread more

Pages

New systems will have a resolution of 12-km grid scale and will be based on a 20-point ensemble system that would generate a range of forecasts using slightly varying initial conditions.

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. In addition, it will be based on a 20-point ensemble system that would generate a range of forecasts using slightly varying initial conditions. 

Topics

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Regions

Chhattisgarh’s Bemetara district has been facing severe water shortage for a while now. Rainwater harvesting could be a solution to this.

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.  

Topics

Sub-Categories

Regions

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 and increase the availability of water in private bore wells which shall decrease the load on the troubled water supply board.

Topics

Sub-Categories

Regions

Safer water and better nutrition were key in mitigating fluorosis problem in parts of the state.

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 bhoot or evil spirit was tormenting them like hundreds of others who were becoming crippled in the village of Tapatjuri in Nagaon district in Assam. Little Farhan could barely eat, wash or take a stroll without assistance.

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While Swachh Bharat Mission is focused on improving sanitation in the country, an ODF India remains a distant dream. Can corporate contribution ease the sanitation challenges India faces?

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. Companies were compelled to loosen their purse strings as Section 135 of the Companies Act, 2013 made corporate social responsibility (CSR) mandatory.

CSR platform for WASH in Maharashtra

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Swachh Bharat Mission: Could the most ambitious cleanliness campaign in Indian history also be the most expensive failure?

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, CEO of FICCI and the Chair of India Sanitation Coalition, a platform for partnerships to work towards achieving sustainable sanitation for India. 

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Super tiny particles derived from table sugar can detect lead in water which is harmful for human consumption.

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 nanoparticles from table sugar and have shown that these particles can be used as sensors for detecting lead in water. 

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Policy matters this week

National Green Tribunal forms commission to inspect Bengaluru lakes

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News this week

KSPCB says Cauvery water can be used for drinking after conventional treatment

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Regions

A study finds an increased concentration of black carbon in Gangotri region during tourist seasons.

In a significant input for the growing debate on global climate change, a study by researchers at the Dehradun-based Wadia Institute of Himalayan Geology (WIHG) has found that there is a remarkable increase in the concentration of black carbon in the atmosphere near the pilgrim town of Gangotri in Uttarakhand during the two annual tourist seasons of April to June and during September and October. 

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