Agent Orange cleanup begins
The United States began a landmark project Thursday to clean up a dangerous chemical left from the defoliant Agent Orange — 50 years after American planes first sprayed it on Vietnam’s jungles to destroy enemy cover.
Dioxin, which has been linked to cancer, birth defects and other disabilities, will be removed from the site of a former U.S. airbase in Danang in central Vietnam. The effort is seen as a long-overdue step toward removing a thorn in relations between the former foes nearly four decades after the Vietnam War ended.
“We are both taking the first steps to bury the legacies of our past,” U.S. Ambassador David Shear said during the ceremony on the site’s boundary. “I look forward to even more success to follow.”
The $43-million joint project with Vietnam is expected to be completed in four years on the 19-hectare contaminated site, now an active Vietnamese military base near Danang’s commercial airport.
Washington has been quibbling for years over the need for more scientific research to show that the herbicide caused health problems among Vietnamese. It has given about $60 million for environmental restoration and social services in Vietnam since 2007, but this is its first direct involvement in cleaning up dioxin, which has seeped into Vietnam’s soil and watersheds for generations.
Shear added the U.S. is planning to evaluate what’s needed for remediation at the former Bien Hoa airbase in southern Vietnam, another Agent Orange hot spot.
The work begins as Vietnam and the U.S. forge closer ties to boost trade and counter China’s rising influence in the disputed South China Sea that’s believed rich in oil and natural resources.
The Danang site is closed to the public. Part of it consists of a dry field where U.S. troops once stored and mixed the defoliant before it was loaded onto planes.
The contaminated area also includes lakes and wetlands dotted with pink lotus flowers where dioxin has seeped into soil and sediment over decades. A high concrete wall separates it from nearby communities and serves as a barrier to fishing there.
The U.S. military dumped some 75 million litres of Agent Orange and other herbicides on about a quarter of former South Vietnam between 1962 and 1971, decimating about 2 million hectares of forest — roughly the size of Massachusetts.
The war ended on April 30, 1975, when northern Communist forces seized control of Saigon, the U.S.-backed capital of former South Vietnam. Some 58,000 Americans died, along with an estimated three million Vietnamese. The country was then reunified under a one-party Communist government. Following years of poverty and isolation, Vietnam shook hands with the U.S. in 1995 and normalized diplomatic relations.
The Agent Orange issue has continued to blight the U.S.Vietnam relationship because dioxin can linger in the environment for decades, entering the food supply through the fat of fish and other animals.
Although the chemical remains at the Danang site, U.S. officials said Thursday that containment measures implemented in recent years temporarily ended the public health threat to the local community.
In 2007, Vietnamese authorities — with technical assistance from the U.S. Environmental Protection Agency and funding from the non-profit U.S.-based Ford Foundation — poured a 15-cm concrete slab half the size of a football field over the contaminated area where Agent Orange was mixed. Dioxin is not watersoluble and only spreads when rainfall and runoff move contaminated mud.
Vietnam’s Ministry of Defence and the U.S. now plan to excavate 2.5 million cubic feet employing technology used to clean super-fund sites in the U.S.
Workers will first dig down about 6.56 feet. The soil will then be heated to 335C in special containers where the dioxin will break down into oxygen, carbon dioxide and other substances that pose no health risks.
Vietnam’s deputy defence minister, Nguyen Chi Vinh, said Thursday he hopes to receive more support from the international community and the U.S. government to help remediate dioxin hot spots elsewhere.
It is still unclear how much dioxin the U.S. will help clean up in the long term and how much it will allocate for people who claim to be Agent Orange victims.