BBC Home
Explore the BBC
BBC News
Launch consoleBBC NEWS CHANNEL
Last Updated: Thursday, 6 September 2007, 14:54 GMT 15:54 UK
Arsenic alarm in Bihar villages
By Amarnath Tewary
BBC News, Bihar

Bangladeshi farmer
Arsenic was recognised as a problem in South Asia in the 1980s
Arsenic levels have risen to alarming levels in many districts of the north-eastern Indian state of Bihar, officials say.

A state government survey has revealed that arsenic levels in up to 12 districts of the state of Bihar are now a threat to life.

The state capital, Patna, is among the affected areas.

Reports say villagers in some districts are suffering from bone deformations and a variety of skin complaints.

Different levels

The study by Bihar's Public Health and Engineering Department (PHED) reveals that the average arsenic content in drinking water in the 12 districts is 500 parts per billion (ppb).

The World Health Organisation says that levels above 10 ppb present health hazards.


The health authorities in India have fixed the permissible limit at 50ppb.

"If arsenic content goes beyond the specified limits it can cause slow death," Madan Kumar, the PHED's chief engineer told the BBC.

As well as Patna, the other worst affected districts are Darbhanga, Bhojpur, Vaishali, Bhagalpur, Samastipur, Buxar, Khagaria, Begusarai, Katihar, Chapra and Munger.

Arsenic, an odourless and tasteless semi-metal element, occurs naturally in the environment and sometimes as a by-product of agricultural and industrial activities.


"Drinking water with high arsenic content may cause deadly diseases like gangrene and cancer of the intestines, liver, kidney and bladder," a leading Patna doctor, Gauri Shanker Singh, said.

"Its effect is slow as the impact remains invisible for a long time."

Plates of rice. Image: AFP

In many villages falling in the 12 districts people have complained of weakening and bending of the bones and dreadful rashes and lumps on the skin.

The reasons why these areas are suffering from rising arsenic levels is not clear.

"It might be because of an alarming drop in water levels. The water level in these areas has gone down to a great extent in last five years," Mr Kumar said.

With the help of the United Nations children's agency, Unicef, Bihar's Public Health & Education Department has been marking hand pumps and tube wells with different colours to indicate whether the water is safe to drink.

The first signs that arsenic-contaminated water might be a major health issue emerged in the 1980s, with the documentation of poisoned communities in Bangladesh and the Indian state of West Bengal, which neighbours Bihar.

World facing 'arsenic timebomb'
30 Aug 07 |  Science/Nature
Dealing with toxic computer waste
27 Dec 06 |  Business
Arsenic water safety breakthrough
10 Nov 06 |  South Asia
Bangladesh man loses arsenic case
05 Jul 06 |  South Asia
Scientists make arsenic water link
30 Jun 04 |  South Asia
Focus on Bangladesh arsenic risk
15 Feb 04 |  South Asia

The BBC is not responsible for the content of external internet sites

Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit


Americas Africa Europe Middle East South Asia Asia Pacific