Renovation materials you do not know? With the improvement of people’s living standard, more and more people pay attention to the quality of life, and renovating their homes is something that every family is happy to do, but have you paid attention to these quality issues when selecting the renovation materials? In addition to smoking, environmental factors such as indoor pollution caused by decoration materials are also an important cause of lung cancer. People often neglect a very important point in the process of decoration, that is, indoor environmental pollution, which looks like a beautiful and fashionable living room, but they do not know that it exists around us all the time like an invisible killer, because there are a lot of toxic gases in the materials used for decoration, such as formaldehyde, ammonia, benzene, radon and so on. The latest research results published by the World Health Organization show that indoor radon has become the second major cause of lung cancer after smoking. Radon is a natural radioactive gas, colorless and tasteless, which can be called “invisible smoke”. When radioactive gas like radon enters human body through respiratory tract, the first one to be hurt is lung. We all think that after a new house is renovated, there will be formaldehyde, which affects our health. In fact, radon is more terrible than formaldehyde. It is different from volatile gases such as ammonia, formaldehyde and benzene, which will be slowly dissipated over time, while radon is decayed from radium element and is a kind of harmful gas with source. Although there are no relevant research figures on indoor radon and lung cancer incidence in China, we must pay attention to and be alert to the lung cancer that may be caused by indoor radon as proposed internationally! The latest study of World Health Organization shows that the exposure to radon is proportional to the risk of lung cancer. On average, if the radon level in each cubic meter of space increases by 100 becquerels, the risk of lung cancer increases by 16%. Based on the average radon level in each region of the world, it is estimated that lung cancer cases caused by radon account for 3% to 14% of all lung cancer cases in each region. Therefore, when renovating, one should pay attention to the choice of decoration materials, use natural stone as little as possible to reduce the radiation source; secondly, pay attention to ventilation, do not rush to move into the newly renovated house, ventilate more to exhaust the formed radon gas, and wait for the environmental monitoring unit to pass the test before moving in with confidence. It is worth noting that humidifier and chemical agents can not get rid of radon gas. Volatile Organic Compounds VOC is the abbreviation of Volatile Organic Compounds (VOC). VOC refers to various organic compounds with boiling points of 50 to 260℃ under normal pressure. Among the more than 900 indoor chemicals and biological substances identified, VOCs are at least 350 species (>1ppb), of which more than 20 are carcinogens or mutagens, some of which can cause cancer (lung cancer, leukemia) or lead to miscarriage, fetal abnormalities and growth retardation with long-term exposure. Therefore, it has the greatest impact on pregnant women, children and other special groups. VOCs in indoor air mainly come from construction and decorative materials such as paints, coatings, fillers, sealants, adhesives, floor coverings, wall coverings, and furniture. The total VOC in indoor air is related to indoor temperature, relative humidity, loading of materials, number of air changes (indoor air circulation) and other factors In view of the high volatility of VOC, while using high quality wall paint with low VOC content, the newly renovated house should also be left vacant for a period of time to maintain ventilation and reduce the residual amount of VOC in the air. For newly renovated houses subjected to VOC pollution, some green plants are more effective natural deodorizers. NASA scientists found that under 24-hour lighting conditions, a pot of aloe vera can eliminate 90% of the formaldehyde contained in 1 cubic meter of air; a pot of hanging orchids can fireplaces, appliances, plastic products emitted carbon monoxide and peroxide absorbed, while also absorbing 86% of the formaldehyde; tiger tail orchids and other large leaves of foliage plants can absorb more than 80% of the harmful indoor gases; and Rhododendron is a good adsorber of radioactive substances. Therefore, in a 15-square-meter room, two pots of hanging orchids or tiger tail orchids can keep the air fresh and away from the harm of VOC. Have you noticed the environment inside the car? Both high-end imported luxury cars, or domestic ordinary vehicles, are caught in the “odor door”, car interior air safety situation is worrying. The names of “polycyclic aromatic hydrocarbons”, “formaldehyde”, “benzene” and other toxic substances in the car air are constantly stimulating people’s nerves, the car interior has gradually become a fearful The trend of “toxic cave”. The issue of air safety in cars is not a new topic. According to March 15, 2013, the State Administration of Quality Supervision, Inspection and Quarantine announced the “2012 automotive product defect information complaints” shows that the odor inside the car has become one of the most concentrated problems of car owners complaints. Over the past few years, companies and models that have been exposed due to problems are common, although as early as March 2012, the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine jointly issued the “Passenger Car Interior Air Quality Evaluation Guide”, but due to regulatory and other reasons, the problem of automotive interior air safety has not been well resolved. At present, the simplest and most effective way to improve the air quality in cars is to let the toxic gases in the car as soon as possible. As if the new house after renovation needs to be idle for a period of time for ventilation, to be dissipated after the harmful gases before moving in, the car also needs more ventilation. In addition, regular cleaning of car air conditioning ducts, timely replacement of car air conditioning filters, the use of activated carbon adsorption and filtration, car oxygen bar, ozone, gas catalyst, photocatalyst and other ways to disinfection, can also play a role in improving the air quality inside the car experts also recommend that you should try to use the air circulation inside and outside the car to dilute the original toxic pollutants in the car. Even if the factory interior pollution is serious, as long as you insist on driving with the windows open, and more sunlight to accelerate the volatilization of toxic gases, at most only a few months of time, you will be able to dissipate the pollutants inside the car. In order to eliminate the leather odor in the new car as soon as possible, you can choose, for example, activated carbon and other adsorbents to replace the car perfume, not only can play a relatively strong adsorption effect, and there is no harm to the human body.