Poison in India’s groundwater posing national health crisis

May 2, 2012

water_crisis

New Delhi, May 2: Depletion of groundwater and its increasing pollution could be leading to a silent, nationwide public health crisis as aquifers in many stretches across India are becoming unfit for drinking, according to the government's own figures.

Data submitted in Parliament by the water resources ministry on Monday shows groundwater in pockets of 158 out of the 639 districts has gone saline. It says in pockets across 267 districts, groundwater contains excess fluoride; in 385 districts, it has nitrates beyond permissible levels; in 53 there's arsenic and there's high level of iron in 270 districts.

Besides this, aquifers in 63 districts contain heavy metals like lead, chromium and cadmium, the presence of which in any concentration poses a danger.

The record submitted in answer to a question by Congress MP Shruti Chowdhry presents a countrywide map of where groundwater has become unfit for drinking and where contamination levels have breached government standards of safety.

In Delhi, a number of areas are not safe to draw groundwater from. Aquifers in north, west and southwest districts along the Najafgarh drain contain lead. The southwest district has cadmium and northwest, south and east Delhi have chromium, rendering the water not just bad but dangerous to drink.

Adding to the danger is the fact that only about 65% of the city's population (predominantly in the better-off localities) is serviced by the water supply system of Delhi Jal Board. Besides heavy metal contamination, fluoride has been found in aquifers in New Delhi and those in east, central, north, northwest, south, southwest and west Delhi.

Apart from these, areas in east, central, New Delhi, northwest, south, southwest and west contain nitrates.

The stealthily growing health crisis could be worse in rural India where facilities to even detect chronic health problems arising out of water contamination do not exist. Nearly 80% of India's rural drinking water comes from underground sources.

Drinking fluoride-laden water beyond safe levels can lead to fluorosis which hits teeth and bones. Arsenic causes problems in the nervous system, reduces IQ level in children and in extreme cases can also cause cancer. Chromium is a known carcinogen. Presence of nitrates in drinking water leads to what is commonly called as blue baby disease which hits infants and can lead to respiratory and digestive system problems.

These chemicals have appeared in the water sources either due to too much water being drawn from deeper and deeper in the ground, or due to industrial and human waste contamination.

Arsenic and fluoride are typically found in groundwater where chemicals have leeched from the bedrock due to over-exploitation of the source. Heavy metals are likely to flow in from industrial waste dumped untreated into water-systems. Nitrates are likely to appear in groundwater because of excess or repetitive use of fertilizers over time.

Government reports have shown that water withdrawal from underground aquifers is higher than the annual recharge levels in almost 15% of the country's geographical area. The number of wells are increasing rapidly and so are the depths to which people are plumbing to bring water out as the sources dry up.

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News Network
May 1,2020

Sangod, May 1: Claiming that "drinking alcohol will surely remove coronavirus from the throat", Congress MLA from Sangod, Bharat Singh Kundanpur, has in a letter to Chief Minister Ashok Gehlot urged the reopening of liquor stores in the state, which have been closed in the wake of nationwide lockdown.

"When coronavirus can be removed by washing hands with alcohol, then drinking alcohol will surely remove virus from the throat," Kundanpur wrote in his letter dated April 30.

He also alleged that the sale of illegal liquor and bootlegging had become rampant in the state due to the closure of liquor stores during the lockdown.

Prime Minister Narendra Modi had on March 24 announced a 21-day nationwide lockdown as a precautionary measure to contain the spread of COVID-19. The lockdown was later extended till May 3.

As many as 2,617 COVID-19 cases have been reported in Rajasthan, as per the latest update by the state Health Department.

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News Network
April 24,2020

New Delhi, Apr 24: The trajectory of COVID-19 cases could have plateaued and might even fall for some weeks after the lockdown is lifted but India is likely to see a second wave in late July or August with a surge in the number of cases during the monsoon, say scientists.

The timing of the peak will depend on how India is able to control physical distancing and on the level of infection spreads after restrictions are relaxed, they said.

It looks apparent that the trajectory of daily new cases has reached a plateau and eventually it will take a downward fall, maybe for some weeks or even months, Samit Bhattacharya, associate professor at the Department of Mathematics, Shiv Nadar University, said.

Still, we may get a surge of new cases of the same coronavirus and this will be considered a second wave, Bhattacharya explained.

The second epidemic may come back in late July or August in the monsoon, although the peak timing will depend on how we control social distancing during that time, he said.

Rajesh Sundaresan, professor at Bengaluru's Indian Institute of Science (IISc), agreed.

“Once we return to normal activity levels, there is a chance that infection may begin to rise again. China is seeing this to some extent post easing of some restrictions on travel,” Sundaresan, corresponding author of a working paper by researchers at IISc and the Tata Institute of Fundamental Research (TIFR) in Mumbai, said.

On March 25, when the number of coronavirus cases was 618 with 13 deaths, the government announced a nationwide lockdown that was later extended to May 3.

On Friday, the death toll due to COVID-19 rose to 718 and the number of cases to 23,077, according to the Union Health Ministry.

In good news, officials said this week that the doubling rate of cases has slowed down in the period, going from 3.4 days before lockdown to 7.5 days, with 18 states doing better than the national average. The recovery rate has also almost doubled in the last 10 days.

"Looking at the new cases in the past few days, it seems the growth of new daily infection is much slower than earlier. This apparently indicates that we might have reached at the plateau of the growth curve, Bhattacharya said.

He noted that recent studies in China and Europe observed that the infection might relapse in those people who have already recovered from earlier phases.

So, there is no evidence that the earlier infection may help acquire immunity against the second infection. And in that way, the entire population may be vulnerable to the second wave to some extent, said the scientist.

In their study unveiled this week, IISc and TIFR researchers analysed the impact of strategies such as case isolation, home quarantine, social distancing and various post-lockdown restrictions on COVID-19 that might remain in force for some time.

The study modelled on Bengaluru and Mumbai suggests the infection is likely to have a second wave and the public health threat will remain, unless steps are taken to aggressively trace, localise, isolate the cases, and prevent influx of new infections.

The new levels and the peaking times for healthcare demand depend on the levels of infection spreads in each city at the time of relaxation of restrictions, they said.

The lockdown is currently upon us. It has given us valuable time. Let us test, trace, quarantine, isolate, practice better hygiene, search for a vaccine, etc. We should do these anyway, and these are being done. When and how to lift the lockdown is going to be a difficult decision to make, said Sundaresan.

It's clear that it's going to be phased. What our team is focusing on is to come up with tools to help the decision makers assess the public health impact of various choices, he said.

According to the experts, infectious diseases spread via contact between infectious and susceptible people. In the absence of any control measures, an outbreak will grow as long as the average number of people infected by each infectious person is more than one.

Once enough people are immune there will be fewer people susceptible to the infection and the outbreak will die.

However, when an outbreak is brought under control by social distancing and other interventions, it is possible only a small proportion of the population will have been infected and gained immunity, they said.

This means enough susceptible people may remain to fuel a second wave if controls are relaxed and infection is reintroduced.

Until the vaccine comes on the market, we have to remain alert Once sporadic cases occur here and there in the country, we immediately need to implement quarantine or social distancing locally for the people in that region, and also need to perform tests to identify positive cases irrespective of showing symptoms, Bhattacharya explained.

Note that these monsoon months are also flu season in many places of India. So, we should not ignore the early signs of the flu symptoms. Irrespective of symptoms, we need to increase tests in the hotspots to identify people and contain the surge, he said.

Sundaresan added that the timeline for a second wave will depend on a lot of circumstances which may change as the time passes.

Significant testing may have been underway, there may be behavioural changes with people becoming more careful about their hygiene, wearing masks may become more common, etc. All these responses may help restrict the second wave, he said.

A study published in The Lancet journal earlier this month modelled the potential adverse consequences of premature relaxation of interventions, and found it might lead to a second wave of infections.

The finding is critical to governments globally, because it warns against premature relaxation of strict interventions, the researchers said.

While interventions to control the spread of SARS-CoV-2 are in place, countries will need to work toward returning to normalcy; thus, knowledge of the effect of each intervention is urgently required, they said in the study.

According to a recent analysis by the Harvard Chan School of Public Health, the best strategy to ease the critical care burden and loss of life from COVID-19 might be on-again, off-again social distancing.

In the absence of such interventions, surveillance and intermittent distancing may need to be maintained into 2022, which would present a substantial social and economic burden, the researchers wrote.p

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News Network
May 4,2020

New Delhi, May 4: Rebutting the Congress' criticism, the BJP said on Monday that the railways has subsidised 85 per cent of ticket fare for special trains being run for migrant workers and the state governments have to pay the remaining 15 per cent.

The ruling party also accused the Congress of promoting indiscriminate movement of people which, it said, would lead to "faster spread" of coronavirus infection "just like we saw in Italy", and asked if this is what Sonia Gandhi wants.

The counter-charge from BJP leaders, including its spokesperson Sambit Patra and information technology department in-charge Amit Malviya, came after Congress president Sonia Gandhi hit out at the central government for making migrants pay for their train fare and asked her party's state units to pick the tab.

Congress leader Rahul Gandhi also took a swipe at the railways, saying, on one hand, it is seeking ticket fare from people stranded in various states while on the other it is donating Rs 151 crore to the PM-CARES Fund.

Responding to him, Patra said, "Rahul Gandhi ji, I have attached guidelines of MHA which clearly state that 'No tickets to be sold at any station'. Railways has subsidised 85% & state govt to pay 15%. The state govt can pay for the tickets (Madhya Pradesh's BJP govt is paying). Ask Cong state govts to follow suit," Patra tweeted.

The BJP leader further clarified that for each 'Shramik Express', special trains being run for migrants to take them back to their native places during the lockdown, about 1,200 tickets to the destination are handed by the railways to the state government concerned.

State governments are supposed to clear the ticket price and hand over the tickets to workers, he said.

He said the BJP government in Madhya Pradesh is doing so and asked Rahul Gandhi to tell the Congress-ruled states to follow suit.

Hitting out at Sonia Gandhi, Malviya tweeted, "Congress is obviously upset at how well India has handled Covid. They would have ideally wanted a lot more people to suffer and die. Promoting indiscriminate movement of people would lead to faster spread of infection, just like we saw in Italy. Is this what Sonia Gandhi wants?"

BJP MP Subramanian Swamy claimed that migrant workers returning home will not have to pay money as the rail travel will be free from now onwards.

"Talked to Piyush Goyal office. Govt will pay 85% and State Govt 15%. Migrant labour will go free. Ministry will clarify with an official statement," he tweeted.

BJP Congress Coronavirus COVID-19 Coronavirus lockdown Italy Sonia Gandhi Rahul Gandhi Sambit Patra Amit Malviya Subramanian Swamy Piyush Goyal

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