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High DDT Levels Found in Breastmilk of Hong Kong Mothers

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High DDT Levels Found in Breastmilk of Hong Kong Mothers

 

HONG KONG: July 25, 2005

 

HONG KONG - High levels of DDT were found in the breastmilk of new mothers in

Hong Kong even though the pesticide has long been banned in many places,

including Hong Kong and China, a scientist said on Friday.

 

The findings by researchers from Hong Kong's Baptist University suggest that DDT

is still being illegally used in mainland China, on which Hong Kong depends for

most of its food supplies, he said.

The study of a group of 37 Hong Kong mothers was carried out between 1999 and

2000, but the researchers who published the study this month said the results

still held good.

 

" When you compare it with similar studies in other countries, Hong Kong's DDT

problem is serious, " Chris Wong Kong-chu, a biology associate professor at the

Baptist University told Reuters in an interview.

 

If found in human breastmilk, persistent organic pollutants such as DDT can be

fully absorbed by infants.

 

DDT was banned in 1972 in the United States after it caused reproductive damage

to birds such as the brown pelican and bald eagle, but it can remain in the

environment for a long time. It also has been shown to increase the growth of

breast cancer cells.

 

" Even though the samples were taken in 1999 and 2000, the results definitely

still apply and are representative, " said Chris Wong.

 

" These pollutant accumulations take place over a very long period of time and

even if we collect the samples again from the same subjects, they will show the

same level of DDT concentrations, " he said.

 

The team led by biology professor Wong Ming Hung collected breastmilk and fatty

tissue from the abdomens of the new mothers.

 

They found an average of 2.79 micrograms of DDT per gram of fat in Hong Kong

mothers who were tested, far exceeding levels found in places such as Japan

(0.78), Italy (1.98) and the United States (2.52). The situation was only worse

in China (7.6) and Mexico (5.66).

 

The report said the high level of DDT in Mexico was understandable because DDT

had been widely used for malaria control before it was banned recently.

 

But for DDT to turn up in China and Hong Kong was surprising because the

pesticide has been banned in the region since 1983.

 

" This is possibly due to the fact that there may be some illegal use of DDT in

China... " the scientists said in the paper, published this month in the Archives

of Environmental Contamination and Toxicology.

 

Chris Wong said DDT probably found its way into the Hong Kong women through the

fish they consumed. Most of the fish sold in Hong Kong are caught in Chinese

waters.

 

" The sea is a huge dumping site and pollutants get into the fish. We asked our

subjects how much fish they consume, and we found a correlation. The higher the

seafood consumption, the higher the DDT content, " he said.

 

Scientists say it has not been conclusively established what damage DDT does to

infants. But a recent US study found that a group of mothers with elevated

levels of DDT suffered premature deliveries and had babies who were underweight.

 

" What we need is closer monitoring of this pollutant in the environment, in food

and in people in this area and we have to see if this problem will get worse, "

he said.

 

REUTERS NEWS SERVICE

 

 

 

Caroline Collard

 

World's first fully certified organic skin, body, oral and health care products

www.happyandhealthy.org.uk

 

 

 

 

 

 

 

 

 

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