{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='One of the world\u0026#39;s worst water poisoning incidents is still claiming victims' data-url='/boclips/videos/5c54be85d8eafeecae13c3f2' data-video-url='/boclips/videos/5c54be85d8eafeecae13c3f2' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nOne of the world\u0026#39;s worst water poisoning incidents is still claiming victims\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003e1. Various of villagers working near a pond, boating passing2. Various of local people in a village in the suburbs of Dhaka3. Mid of Salma, an arsenic patient, walking into health centre to consult with medic4. Close up of Salma's face5....\u003c/span\u003e\n\u003cspan class='full-description hide'\u003e1. Various of villagers working near a pond, boating passing\u003cbr/\u003e2. Various of local people in a village in the suburbs of Dhaka\u003cbr/\u003e3. Mid of Salma, an arsenic patient, walking into health centre to consult with medic\u003cbr/\u003e4. Close up of Salma's face\u003cbr/\u003e5. Wide of medic checking her condition\u003cbr/\u003e6. Close up of her hand\u003cbr/\u003e7. SOUNDBITE: (Bangla) Salma, an arsenic patient, \u003cbr/\u003e\"Since it started, I easily felt cold. Then, I have skin problem on my hands and legs. My hair started falling down. I can't see properly sometimes, things became hazy.\"\u003cbr/\u003e8. More of medic checking her skin \u003cbr/\u003e9. SOUNDBITE: (Bangla) Aminul Islam, Paramedic at Arsenic centre, \u003cbr/\u003e\"First hands and legs became rough, and black pigmentation on the body skin. Then, patients will become tired and fatigue, start to have breathing problem, then they begin to see things hazily and eyes become red.\" \u003cbr/\u003e10. Wide of sand-filtered water chamber pan down to Altab Elahi, Programme Officer, Dhaka Community Hospital and his colleague walking toward the filter chambers \u003cbr/\u003e11. Wide of Altab's colleague turning open water tap, zoom into close up of hands turning open the tap \u003cbr/\u003e12. Close up of water running from a tap \u003cbr/\u003e13. SOUNDBITE: (English) Altab Elahi, Programme Officer, Dhaka Community Hospital, \u003cbr/\u003e\"People did not know about the contamination of the t-well (tube well). When Dhaka Community Hospital came to this upazilla (sub-district), Dhaka Community Hospital tested all the t-wells around the upazillas and found 47 percents of the total t-wells are red. Red means when we found, the t-wells have arsenic contamination.\"\u003cbr/\u003e14. Various of water in the pond\u003cbr/\u003e15. SOUNDBITE: (English) Altab Elahi, Programme Officer, Dhaka Community Hospital,\u003cbr/\u003e\"This system we designed, firstly the river waters comes through a pipeline and that river water comes to the water chambers. There are so many chambers. There are six chambers. It's known as a slow sand filtered mechanism. The river water comes through pipeline to these water chambers and after filtration, completing the whole process.\"\u003cbr/\u003e16. Wide of two women walking out of a shelter \u003cbr/\u003e17. Hand turning open sand-filtered water tap tilt down to water running into a vessel \u003cbr/\u003e18. Wide of women filling filtered water in vessels\u003cbr/\u003e19. SOUNDBITE: (English) Altab Elahi, Programme Officer, Dhaka Community Hospital\u003cbr/\u003e\"This village is highly arsenic contaminated. There are 99 t-wells in this village. Out of 99 t-wells, 86 t-wells already contaminated, marked as red. That means most of the people drinking or drank arsenic (contaminated) water.\"\u003cbr/\u003e20. Various of women filling filtered water into a jug, pouring into a glass for a boy to drink \u003cbr/\u003e21. SOUNDBITE: (English) Mahmuder Rahman, Professor of Medicine at Dhaka Community University\u003cbr/\u003e\"This arsenic is deposited under the ground from the contaminated soil deposit and has been brought in by the big rivers. \"  \u003cbr/\u003e22. Wide of villagers on pond \u003cbr/\u003e23. SOUNDBITE: (English) Mahmuder Rahman, Professor of Medicine at Dhaka Community University\u003cbr/\u003e\"Exactly how it is affecting systems still we are not very clear about it but so far we've learnt (that) up to certain stage possibly it's reversible. But it is very (inaudible) that is producing cancer. Apart from that, it produced vascular diseases like vasculitis and gangrene. It also has got neurological side effects. \"\u003cbr/\u003e24. Close up of photo showing arsenic patient's feet \u003cbr/\u003e25. Mid of doctor showing photo of arsenic patients tilt down to photo on the table\u003cbr/\u003e26. More of photo illustrating arsenic symptoms\u003cbr/\u003eBangladesh is located in the world's largest river delta, the Ganges delta. \u003cbr/\u003eIt stretches approximately 220 miles (350 kilometres) across the Bay of Bengal. \u003cbr/\u003eBangladesh is a watery place, with much of the country no more than 10 meters (33 feet) above see level. \u003cbr/\u003eThe United Nations Population Fund estimates that Bangladesh has a population of almost 142 million, the largest of the least developed countries in the world. \u003cbr/\u003eThe World Health Organisation estimates that up to 80 million people may be affected by what has been described as the biggest case of water poisoning in history. \u003cbr/\u003eA government programme dug 5 million wells in the early 1990s to provide 'safe' drinking water and save millions of people from cholera, diarrhoea and other waterborne diseases. \u003cbr/\u003eHowever the plan led to mass poisoning when the groundwater used for drinking was found to be contaminated with naturally occurring inorganic arsenic. \u003cbr/\u003eWater tied up in glaciers in the Himalayas, melts each spring and feeds the rivers of the water logged deltas of Bangladesh. \u003cbr/\u003eBut somewhere along their journey many underground rivers become contaminated with arsenic a naturally occurring chemical element found in underground water reserves. \u003cbr/\u003eIf consumed it can cause serious illness and even death. \u003cbr/\u003eThe problem began when Bangladeshis began to drink groundwater after the Bangladesh government dug 5 million wells to provide drinking water and save millions of people from cholera, diarrhoea and other waterborne diseases in the early 1990s\u003cbr/\u003eThe programme, was designed to prevent people from drinking bacteria-contaminated surface water. \u003cbr/\u003eHowever it failed to detect arsenic in the groundwater when it was launched, with disastrous consequences. \u003cbr/\u003eThe World Health Organisation described the poisoning from the wells as the largest in history and warned that up to 80 million people may be affected.\u003cbr/\u003eSalma's story is typical of arsenic poisoning victims. \u003cbr/\u003eShe is just 35 years old but she looks much older than her real age. \u003cbr/\u003eShe was diagnosed with arsenic poisoning, when the local arsenic centre was set up by Dhaka Community Hospital eight years ago. \u003cbr/\u003eTube-well that she was drinking was later marked as 'red' by Dhaka university scientists. \u003cbr/\u003eRed means arsenic poisoning and it is banned from being used as drinking water. \u003cbr/\u003eSalma says that she feels the cold very easily and that she has skin problems on her hands and legs, her hair has begun to fall out and sometimes her vision is hazy. \u003cbr/\u003eShe attends regular treatments at the arsenic centre, where she is given vitamins to take to supplement her diet and ointment to relieve her dry flaky skin.  \u003cbr/\u003eIt seems that Salma's symptoms are common in arsenic poisoning patients. \u003cbr/\u003eAminul Islam, a paramedic at the arsenic centre says that sufferers get rough skin on their hands and legs and later black pigmentation of the skin, they become tired easily, have trouble breathing and hazy vision. \u003cbr/\u003eArsenic poisoning can lead to skin cancer and horny tissue on the feet and it may lead to death.\u003cbr/\u003eTenguria Para, a suburb of Dhaka city, is just one of many of the villages that used tube well water for drinking until arsenic was detected in the drinking water supply. \u003cbr/\u003eOut of 99 tube wells, 86 are marked as 'red', that is contained dangerous levels of arsenic.  \u003cbr/\u003eBut here they have another option, river sand filtered chambers have been set up in the village, sourced from a nearby river. \u003cbr/\u003eThe chambers are linked to 50 water tabs around the village which provide clean water for drinking. \u003cbr/\u003eBut people here still pump water from the red-marked tube wells, which is meant only for other usage but not for drinking.\u003cbr/\u003eAccording to Dhaka Community Hospital, more than 2 million tube-wells are currently being used as the source of drinking water in Bangladesh. \u003cbr/\u003eOut of those, only 50,000 have so far been checked by various Government and non-Government agencies to determine if they contain safe levels of arsenic. \u003cbr/\u003eThe World Health Organisation (WHO) says that the safe value of arsenic per one litre of water should be at 0.01 milligrammes and no higher than 0.05 milligrammes per litre. \u003cbr/\u003eBut Dhaka Community Hospital says that in some parts of Bangladesh, arsenic levels as high as 0.3 milligrammes per litre have been detected. \u003cbr/\u003eMahmuder Rahman, Professor of Medicine at Dhaka Community University, has been campaigning for arsenic poisoning problem in Bangladesh since the problem was first exposed in 1993.  \u003cbr/\u003eRahman says researchers are still not clear what are the medical consequences of arsenic poisoning, but they include cancer \"vascular diseases like vasculitis (inflammation of blood vessel) and gangrene. It also has got neurological side effects. \"\u003cbr/\u003eHe said it is highly likely that a lot of people are still drinking arsenic contaminated water without realising it.  \u003cbr/\u003eSince 1993 non-governmental organisations like the World Bank and UNICEF have provided Bangladesh millions of dollars to help build alternative sources of drinking water such as storage of rain water or treatment of pond water.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' 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