环境污染导致的疾病 时尚双语:交通污染会引发儿童过敏疾病

时尚双语:交通污染会引发儿童过敏疾病  

德国研究人员近日研究证实，交通污染会引发儿童过敏性疾病。
German researchers say they have found some of the strongest evidence yet linking traffic pollution to childhood allergies.
The risk of developing asthma
hay fever（花粉症）
eczema（溼疹） or other allergies is about 50 percent higher for children living 50 meters (yards) from a busy road than for those living 1
000 meters away
they said in a study released on Friday.
Previous research has linked pollution to allergies
but to date observational studies in the field have been inconsistent
said Joachim Heinrich
an epidemiologist at the Helmholtz Research Centre for Environment and Health in Munich.
"We consistently found strong associations beeen the distance to the nearest main road and the allergic disease outes
" Heinrich
who led the study
wrote in the American Journal of Respiratory（呼吸的） and Critical Care Medicine.
The study followed 3
000 healthy children from all over Munich for six years from birth to determine rates of allergy-related diseases and exposure to traffic pollution.
The researchers mapped each residential address and the distance to busy roads
then developed a model to calculate exposure to pollution at birth and age o
three and six. A busy road was considered one used by 10
000 cars each day.
"We developed a model to predict air pollution concentration at one point in a metropolitan area
" Heinrich said in a telephone interview.
This allowed the researchers to monitor more than one site as well as follow a large group of children over a long period of time
things many other studies did not do
Heinrich said.
The researchers will continue monitoring the children over the next few years to determine whether moving to a less-polluted area can reverse any of the traffic pollution-related problems
he added.