[translate] aCarbon can be provided by the VOCs in the air stream, but both nitrogen and phosphorus must be provided by the filter material. 碳在空气小河可以由VOCs提供,但必须由过滤器材料提供氮气和磷。[translate]
In this work, a novel online detection and source tracing method for VOCs in the air was developed based on laser-induced breakdown spectroscopy (LIBS) and machine learning (ML). Five haloalkanes were taken as examples, and in the plasma emission spectra of them, atomic or ionic lines of ...
ait uses an ultraviolet light source to breakdown VOCs in the air into positive and negative ions. The PID then detects or measures the charge of the ionized gas, with the charge being a function of the concentration of VOCs in the air. 它使用一个紫外光来源到故障VOCs在天空中入正面和消极离...
In order to measure the levels of VOCs in the environment, specific units of measurement are used.One common unit of measurement is the parts per million (ppm), which indicates the concentration of VOCs in the air.Another unit of measurement is the grams per cubic meter (g/m), which is...
Water-soluble organic matter (WSOM) in fine particles (PM2.5) collected at one rural and three urban sites from the Southeastern Aerosol Research and Chara... Y Sun,Q Zhang,M Zheng,... - 《Environmental Science & Technology》 被引量: 156发表: 2011年 Analysis of Air Quality Data Using Po...
Abstract：The concentration characteristics,composition and possible sources of VOCs in the ambient air in Shenyang were studied based on the online mon让oring data of volatile organic compounds(VOCs)with hourly resolution from the atmospheric composite pollution monitoring superstation in Shenyang.The ...
An intensive observation of ambient volatile organic compounds (VOCs) was conducted in air pollution transmission path cities in Jiangsu Province, during a typical photochemical pollution episode from August 11—15, 2020. Based on the monitoring data, an observation based model (OBM) was used to cl...
This paper reported the composition and distribution of volatile organic compounds (VOCs) in the ambient air of some typical chemical industrial park in Changzhou. The results showed that 58 VOCs were detected in the air of this chemical industrial park,including aromatic hydrocarbons,saturated hydrocar...
ISO 16000-6 Indoor air — Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS or MS-FID室内空气第6部分:通过Tenax TA吸附剂活性取样、热脱附和使用MS或MS-FID的气相色谱法测定...
The situation of volatile organic compounds emitted from motor vehicle in traffic crossing were monitored with GC; the concentration level and the emission characteristics of VOCs in the air was discussed; and the data of past years were... SH Lu,YH Bai,YK Chen,... - 《China Environmental ...