Total visits: 81607，Daily visits 133； Instruments: 107.
Total visits: 81607，Daily visits 133； Instruments: 107.
AQI, the full name is Air Quality Index, is a dimensionless index that quantitatively describes the air quality. Simply put, the AQI tells us how clean or polluted the air i
Air pollution generally refers to the phenomenon that, due to human activities or natural processes, certain substances enter the atmosphere in sufficient concentrations and for a sufficient period of time, thereby jeopardizing human comfort, health and welfare or the environment
Flow Injection Analaysis (FIA) is an analytical technology developed under non-equilibrium dynamic conditions based on intermittent analysis and continuous flow analysis
In sunlight, volatile organic compounds react with nitrogen oxides emitted primarily from vehicles, power plants and industrial activities to form ground-level ozone. As we all know, stratospheric ozone is a biologically critical UV absorber that protects the planet.
Like other air pollutants, the sources of VOCs are divided into natural and anthropogenic sources. Below are some common natural sources of VOCs.
VOC is the abbreviation of Volatile Organic Compound. Different countries and organizations have slightly different definitions of VOC
Currently the mainstream ambient air quality monitoring sites are of the following types: 1. Urban ambient air quality assessment points: monitoring points set up for the purpose of monitoring the overall status and changing trends of air quality in urban built-up areas, mainly for participating in urban ambient air quality assessments;
Sample preparation plays a very important role in chemical analysis. Sample pretreatment accounts for 60% of the entire analysis process
Each element lamp needs to be preheated after it is replaced. Normally, it should be within 30 minutes. The sample test can be performed after the preheating.
The replacement of the gas chromatography septum needs to be determined according to the performance of the instrument itself and the number of samples to be tested.
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