What is the range of the indoor chemical pollution index that is normal?

Indoor chemical pollution index in the range of 0-100 is normal.

The pollution index refers to an index that comprehensively represents the concentration and filtration characteristics of suspended solids and colloidal substances in the feed, and characterizes the degree of blockage of the microporous filter membrane by the feed.

There are many kinds of pollutants in the environment, even within the scope of local pollution, there is often more than one type of contaminant.

Air Pollution Index:

The pollution index items are tentatively defined as sulphur dioxide, nitrogen oxides and total suspended particulate matter.

Empty means: level I, index 0 50, air quality is excellent.

Level II, with an index of 51 100, the air quality is good.

At this time, air quality is considered acceptable and generally poses no danger to public health.

Level III(1) with an index of 101 150 indicates that the air quality is slightly polluted.

At this time, the health of people who are more sensitive to pollutants, such as children and the elderly, people with respiratory or heart diseases, and those who enjoy outdoor activities, are affected.

Level III (2) with an index of 151 200 and the air quality is lightly polluted.

At this time, almost everyone's health is affected, and the adverse effects are especially pronounced for sensitive groups.

The indices were 201 250 and 250 300, which were level IV (1) and IV (2), respectively, and the air quality status was classified as moderate and moderate heavy pollution, respectively. Spending a long time in such air may have a serious impact on everyone's health.

If the index is greater than 300, the air quality level is V, and the air quality status is heavily polluted. Being active in such air for a long time can seriously affect the health of all people.

The standard for sulfur dioxide is:

The criteria for nitrogen dioxide are:

The standard for carbon monoxide is 10mg m3

The standard for carbon dioxide is:

The standard for ammonia is:

The standard for ozone is:

The standard for formaldehyde is:

The standard for benzene is:

The standard for toluene is:

The criteria for xylene are:

The criteria for benzopyrene are:

The standard for inhalable particulate PM10 is:

The criteria for total volatile organic compound (VOC) TVOC are:

The standard for sulfur dioxide is:

The criteria for nitrogen dioxide are:

The standard for carbon monoxide is 10mg m3

The standard for carbon dioxide is:

The standard for ammonia is:

The standard for ozone is:

The standard for formaldehyde is:

The standard for benzene is:

The standard for toluene is:

The criteria for xylene are:

The criteria for benzopyrene are:

The standard for inhalable particulate PM10 is:

The criteria for total volatile organic compound (VOC) TVOC are:

Air Pollution Index (API).

The api value is less than.

Equal to 50, it means that the air quality is excellent.

If the API value is greater than 50 and less than or equal to 100, the table indicates that the air quality is good, and the API value is greater than 100 and less than or equal to 200, indicating that the air quality is mildly polluted;

API values greater than 200 indicate poor air quality and are called moderate pollution;

API greater than 300 indicates that the air quality is extremely poor and has been heavily polluted.

There are mainly PM10, SO2, NO2, CO, O3 and other measurement items, and the maximum value of the pollution index of each pollutant is the air pollution index of the city, which is the primary pollutant.

Air Pollution Index (API).

If the API value is less than or equal to 50, the air quality is good.

An API value greater than 50 and less than or equal to 100 indicates good air quality.

If the API value is greater than 100 and less than or equal to 200, the air quality is mildly polluted.

API values greater than 200 indicate poor air quality and are called moderate pollution;

API greater than 300 indicates that the air quality of the registered file is very poor and has been seriously polluted.

c Analysis: The level of air quality is expressed in terms of pollution index, which is related to the number of pollutants contained in the air. The polluted air pollution index is large, and stupid eggplant hands are harmful to human health.

The air pollution index is small, which is beneficial to human health. Test Center: Pollution Index.