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Sunday, February 26, 2017
- The village of Dong Mai in Vietnam’s agricultural heartland had a serious problem.
To boost their meager incomes, its residents – former artisans who once produced and sold bronze casts – had taken to cannibalizing old car and truck lead-acid batteries and smelting them by hand in their own backyards. As a result, the 2,600 people living there had some of the highest blood lead levels ever recorded.
Dong Mai’s water and soil had become terribly contaminated — 32-36 times higher than the acceptable limits. People were getting sick, including children. One home assessed with an X-ray Florescence (XRF) analyser had lead levels 50 times the higher than the U.S. Environmental Protection Agency (EPA) standard.
Local government knew of the problem, but the cost of cleaning it up – expected to run into the millions – was daunting. Then, a collaboration with the Blacksmith Institute for a Pure Earth found ways to remediate the lead for much less: about 20 dollars a person.
Once major remedial work was completed, in February 2014, lead levels in the population fell by nearly a third in six months.
“Political will takes time to build,” Rich Fuller, Blacksmith’s president, told IPS. “Governments need solid data on the scope of problems, and how to solve them. Most governments are just starting to build their teams for pollution, and those NGOs that provide support, rather than criticism, have really been a huge help.”
Top Ten Countries Turning the Corner on Toxic Pollution notes that pollution kills more than 8.9 million people around the world each year, most of them children, and the vast majority — 8.4 million — in low- and middle-income countries.
To put that figure in perspective, it is 35 percent more than tobacco-related deaths, almost three times more deaths than malaria and 14 times more deaths than HIV/AIDS.
“Contrary to popular belief, many of the worst pollution problems are not caused by multinational companies but by poorly regulated small-scale operations like artisanal mining, small industrial estates or abandoned factories,” Stephan Robinson of Green Cross Switzerland told IPS.
“However, high-income countries are indirectly contributing by their demand for commodities and consumer goods to the issue as many of these small-scale operations produce the raw or precursor products,” he added. “They thus support many of these smaller industries, adding to the severity of pollution problems in low-income countries.”
Lead, the culprit in Dong Mai, is especially devastating for children. It can damage the brain and nervous system, cause developmental delays, and in cases of extreme exposure, result in death. Children also tend to have higher exposures because they play in dirt and put their hands and other objects in their mouths.
The economic toll of pollutants on poor and middle income countries is high: the costs of air pollution alone range between six and 12 percent of GDP.
Previous Blacksmith reports had focused on the 10 worst toxic hotspots, but this year, the groups chose to look at practical, replicable solutions that don’t require a vast amount of resources to implement.
“There is so much to do,” Fuller said. “Only a few countries have started down the path. We wanted to give them credit, and have them be examples for expanding work on pollution in other countries.”
In the case of Dong Mai, mobilising the active participation of villagers and local officials was key.
Instead of removing the contamined soil and carting it off to landfills, the backyards were capped with sand, a layer of geotextiles, 20 centimetres of compacted clean soil, bricks, and finally, concrete on top, safely sealing away the lead.
After an educational campaign, 50 villagers took on the task of remediating their own yards in this way. What could have cost about 10 million dollars was accomplished for 60,000.
“GAHP members are encouraged to help their neighbours,” Fuller said. “Often, a success in one country can translate into a project in another. This is certainly true of lead poisoning and e-waste. The GAHP model is collaborative between international agencies, and between countries, all helping each other work out how to solve these awful problems.”
The other success stories in the report were led by Ghana, Senegal, Peru, Uruguay, Mexico, Indonesia, Philippines, the Former Soviet Union and Kyrgyzstan.
In Thiaroye Sur Mer, Senegal, lead battery recycling was replaced with profitable hydroponic gardens.
In Mexico City, a contaminated oil refinery was turned into an urban park with one million visitors a year.
In Agbogbloshie, Ghana, informal e-waste recycling by burning electronic scrap that released toxins is now performed safely by machines.
“We worked hard to find solutions that would work for the local recyclers,” Kira Traore, Blacksmith’s programme director for Africa, says in the report. “Simply banning burning wouldn’t help them earn an income. Rather, forbidding burning in Agbogbloshie might push the practice elsewhere, thus expanding the pollution and the number of people affected by it.”
Experts note that local sources of pollution – particularly heavy metals like mercury and arsenic – are often very mobile and can have health impacts thousands of kilometres away.
“Mercury from unsafe artisanal gold mining and coal plants travels the globe and is found in our fish which, e.g., we eat as sushi in London,” Robinson said. “DDT (dichlorodiphenyltrichloroethane) is found in the body fat of the inhabitants of Greenland, though there was never agriculture in Greenland.
“Contaminated air from China and elsewhere can be measured in other countries. Radionuclides from nuclear disasters, like Chernobyl, have reached other countries in most of Europe,” he noted.
In essence, rich countries have not only a moral obligation but a vested interest in helping poorer nations address pollution.
“Western nations have had success in cleaning up their toxic and legacy pollution over the last 40 years and can transfer technology and know-how to low- and middle-income countries today. Concretely: We know how to change the situation because we have done it,” he said.
“Pollution problems can only be solved by organisations joining forces and bringing in what they are best at…These are stories proving we are on the right track, and moving forward. But we need to do more with industrialisation in full swing around the world.”
Edited by Roger Hamilton-Martin