Crouched between mountains of discarded plastic, Lanh strips the labels off bottles of Coke, Evian and local Vietnamese tea drinks so they can be melted into tiny pellets for reuse.
More waste arrives daily, piling up like technicolour snowdrifts along the roads and rivers of Xa Cau, one of hundreds of “craft” recycling villages encircling Vietnam’s capital Hanoi where waste is sorted, shredded and melted.
The villages present a paradox: they enable reuse of some of the 1.8 million tonnes of plastic waste Vietnam produces each year, and allow employees to earn much-needed wages.
But recycling is done with few regulations, pollutes the environment and threatens the health of those involved, both workers and experts told AFP.
“This job is extremely dirty. The environmental pollution is really severe,” said Lanh, 64, who asked to be identified only by her first name for fear of losing her job.
It is a conundrum facing many fast-growing economies, where plastic use and disposal has outpaced the government’s ability to collect, sort and recycle.
Even in wealthy countries, recycling rates are often abysmal because plastic products can be expensive to repurpose and sorting rates are low.
But the rudimentary methods used in Vietnam’s craft villages produce dangerous emissions and expose workers to toxic chemicals, experts say.
“Air pollution control is zero in such facilities,” said Hoang Thanh Vinh, an analyst at the United Nations Development Programme focused on waste recycling.
Untreated wastewater is often dumped directly into waterways, he added.
The true scale of the problem is hard to judge, with few comprehensive studies.
In one village, Minh Khai, Vinh said a sediment analysis found “very high contamination of lead and the presence of dioxins”, as well as furan — all of which have been linked to cancer.
And in 2008, the life expectancy for residents of the villages was found to be a full decade shorter than the national average, according to the environment ministry.
Local authorities and the environment ministry did not reply to AFP’s requests for comment.
Lanh believes the toxic waste in Xa Cau gave her husband blood cancer, but she still spends her days sorting rubbish to pay his medical bills.
“This village is full of cancer cases, people just waiting to die,” she said.
– Sickness and wealth –
No data exists on cancer rates in the villages, but AFP spoke to more than half a dozen workers in Xa Cau and Minh Khai who reported colleagues or family members with cancer.