Nylon Food Tongs,Multi-Function Food Tong,Nylon Food Salad Tongs,Black Nylon Food Tongs Yangjiang Homelife Industry & Trading Co., Ltd. , https://www.bettyhomelife.com
It is just as important to prevent and control the inside of the PM2.5 door.
"Recently, we often receive calls to detect indoor PM2.5. It is very difficult. We can certainly detect it. However, there is no standard in this area. After the test is finished, how can the report come out?" National Indoor Environment PM2 held on February 28th. At the .5 pollution prevention and control forum, Song Guangsheng, director of the China Indoor Environmental Monitoring Working Committee, expressed his confusion.
March 1 this year is the 10th anniversary of the official implementation of China's indoor air quality standards. It is this standard that introduced the concept of indoor air quality in China for the first time. In the past ten years, under the guidance of this standard, the awareness of indoor environmental protection in the whole society has been greatly improved. China's indoor environmental monitoring technology has been continuously developed, and the indoor environmental protection industry has formed a scale.
Song Guangsheng said that this standard has been implemented for ten years. It is time to discuss the revision of it, such as the control index of PM2.5. According to his understanding, many experts believe that it should be added to the standard.
Hou Li'an, an academician of the Chinese Academy of Engineering, said that PM2.5 is not only harmful to human health, but also affects our traffic safety and travel problems. It is already very common for airplanes to be delayed in foggy weather. In February last year, the State Council issued a newly revised environmental air quality standard, namely the atmospheric air quality standard, and included PM2.5 in the monitoring scope, which was affirmed and endorsed by the community. But then it has highlighted a new problem, that is, in many cities, including Beijing, it is almost impossible for PM2.5 to meet the standards in a short period of time. In this regard, the government and scientific research workers have reached a consensus.
More than 70% of human time is spent indoors. In the case of outdoor air quality, especially PM2.5 not meeting the standard, how to maintain and create a good indoor environment, so that PM2.5 is as low as possible, Hou Lian believes that this is It is a very difficult task for the majority of science and technology workers. He believes that there are two urgent tasks to be done:
The first is the revision of the standard. It is hoped that through the discussion of everyone, a consensus will be formed to incorporate PM2.5 prevention and control indicators into the new standards. In some European countries, indoor and outdoor air quality is a standard, but since China has divided it into two standards, how to limit PM2.5 in indoor standards, in terms of our technology and monitoring capabilities, limited to How much is appropriate, these issues need to be explored.
The second is to speak with data. At present, the monitoring, monitoring and evaluation data of indoor ambient air quality PM2.5 pollution sources are relatively few. Some of them have been done before, but they are not systematic and incomplete. The conclusion we can now conclude is that when the haze in the atmosphere is very severe, the indoor PM2.5 may be slightly lower than the outdoor level. However, when the outdoor air quality is relatively good, if there is air conditioning, cooking, smoking, etc. in the room, including VOC, formaldehyde and other pollution sources in the furniture decoration materials, PM2.5 may be higher than the outdoor atmosphere. However, the specific data is very incomplete, and monitoring should be strengthened to enhance data analysis. In addition, a portable PM2.5 monitoring instrument that can be used for real-time online monitoring and can be used by ordinary people should be developed. There are some foreign countries, but how to adapt to our national conditions, can really let this thing into thousands of households, put it into the room, you can know what PM2.5 is. This is what scientists do.
Yan Xiaofei, director of the Standards Division of the Science and Technology Department of the Ministry of Environmental Protection, said that there are many factors affecting indoor air quality. It has a relationship with the outdoor, and it is also related to decoration, interior furniture and people's living habits. Supervision is not easy. Indoor air quality standards are recommended standards and are different from air quality standards. If the atmospheric air quality is not up to standard, the government must find a way to push it to the target, but if you don't meet the standard at home, it is impossible to get your target at home. There is such a difference. However, he personally believes that the standard of indoor air quality will certainly become more and more important in society. As people's economic conditions improve, they hope to have a good living environment, especially when we live indoors for a very long time. I believe that everyone has more attention to indoor air quality.
Yan Xiaofei said that experts hope to revise the indoor air quality standards as soon as possible, especially to increase the PM2.5 index, which he strongly agrees with. The existing standard has already had the PM10 indicator, and the PM2.5 is within the PM10. In a sense, the PM10 indicator can be extended to achieve the PM2.5 control. The reason why PM2.5 was proposed as a separate indicator is that the results of long-term research by some experts, including the World Health Organization, have found that PM2.5 is more harmful to human health.
Hao Hao, deputy secretary-general of the China Environmental Protection Industry Association, said that the standards need to be revised. However, to fully solve the PM2.5 problem requires the efforts of the whole society, rather than relying on one standard or one government or two measures. The government should invest in planning, industrial restructuring, and pollution prevention and control projects. The common people must also start from their own, such as minimizing driving, the cooking in the family should not be so hot, the temperature can be lower, including indoor smoking problems, such as the United States law stipulates that smoking is not allowed in hotels, smoking will alarm, and so on. In this regard, it is necessary to strengthen publicity so that ordinary people know how to protect themselves. Reporter Zeng Xiangsu