Air pollution causes many diseases
In a scientific workshop on the impact of air pollution on May 23, experts alarmed air pollution in Ho Chi Minh City, which is worrying, especially the trend of increasing concentration of substances.
In the scientific workshop on the impact of air pollution on May 23, experts alarmed air pollution in Ho Chi Minh City, which is very worrying, especially the trend of increasing the concentration of toxic substances. Harmful in the air such as benzene, nitrogen oxides .
According to Master Le Van Khoa - deputy director of Ho Chi Minh City Environmental Protection Department - on the panorama of air pollution in Ho Chi Minh City, the concentration of some pollutants exceeds the permitted standards. for ambient air quality (residential) and roadside air quality.
Mr. Khoa emphasized that the air quality around residential areas, characterized by dust concentration PM10 (dust particle size smaller than 10 micron), tends to increase in recent years. There is an area of PM10 concentration of more than 80 micrograms / m3, while the permitted standard is many times lower than this number.
(According to US Environmental Protection Agency standards)
Similarly, the standard for sulfur oxides (SO 2 ), through monitoring results also showed that the concentration of this pollutant has not yet exceeded the permitted standards but tends to increase in recent years. In some places in Ho Chi Minh City, the concentration of SO2 reaches about 30 micrograms / m 3 .
However, according to experts, it is particularly important that the concentration of extremely toxic pollutants is currently high. Master Le Van Khoa said 2005 was the first year Ho Chi Minh City began monitoring benzene concentrations present in the air in many areas of the city.
Accordingly, the monitoring results at six points show that the concentration of benzene recorded has reached 35-40 micrograms / m 3 , while according to the standards of the US Environmental Protection Agency, the permitted concentration is only 10 micrograms. / m 3 (VN currently does not have standards for this toxic substance in the air).
Talking to Tuoi Tre, Mr. Khoa explained that benzene concentration in high air is caused by petrol and operation of various kinds of vehicles. In the six monitoring points for benzene concentration in Ho Chi Minh City, the area of Dien Bien Phu - Dinh Tien Hoang intersection, District 3, District 5 . has the most.
'With the concentration of benzene in the air in Ho Chi Minh City, this toxic pollution has been alarmed' - Khoa stressed, while this is a constant warning of possible problems. High carcinogenicity.
Many diseases increase
Dr. Ha Manh Tuan - Deputy Director of a Children's Hospital in Ho Chi Minh City - also voiced: pneumonia, middle ear infection, asthma . are diseases related to air pollution tend to increase.
Dr. Tuan said that districts 8, 11, Tan Binh, Binh Chanh, . account for a high rate of diseases (over 6% of the total respiratory diseases come to the Children's Hospital for examination and treatment), but the highest is Tan Binh district - accounting for over 16% of the total cases.
Analyzing these statistics, experts believe that densely populated areas, high traffic density, especially massive industrial activity . are places where the number of people suffering from respiratory diseases Steaming accounts for a high proportion, even some very high areas.
Meanwhile, Dr. Huynh Tan Tien - Director of Ho Chi Minh City Center for Workers and Environmental Health - said that in 2005, the center discovered more than 300 dust samples and 58 samples of chemicals exceeded the permitted standards. can cause occupational diseases in the footwear industry, rubber chemicals, cosmetics .
Mr. Tien noted that the environment in tobacco factories and the area around the factory should be given due attention, because the industry's activities accumulate various types of toxic chemicals . 'Occupational diseases due to Air pollution is still quite high and there are diseases that leave sequelae for a lifetime that are difficult to treat ' - Mr. Tien warned.
On the other hand, Mr. Nguyen Dinh Tuan - Director of Ho Chi Minh City Environmental Protection Department - said that the goal of the program to reduce air pollution by 2010 is to pull dust and toxic pollutants. harms such as sulfur oxides, carbon oxides . down to standard levels.
Mr. Tuan also frankly criticized the environmental standards for vehicles in our country with many errors, while the inspection and sanctioning of vehicles violating environmental standards are almost not real. show; The improvement of the main fuel quality has just stopped at the elimination of leaded gasoline .
In addition, Mr. Tuan also recognized the registration form of environmental standards is still heavy in formality. This compulsory activity for enterprises, production facilities only works well to the evaluation stage, and post-inspection stage is almost floating.
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