Environmental Science: Do VOCs All Have Odors?

VOCs are abbreviations for Volatile Organic Compounds in English, sometimes called VOCs, which denotes a collective concept of volatile organic compounds

China's national standard GB/T 18883-2022 The definition of Total Volatile Organic Compounds TVOC in the "Indoor Air Quality Standards" is: using Tenax TA or equivalent packing adsorption tube sampling, non-polar or weak polar capillary chromatography column (polarity index less than 10) analysis, retention time between n-hexane and n-hexadecane volatile organic compounds

According to the chemical structure of volatile organic compounds (VOCs), it can be further divided into 8 categories: alkanes, aromatic hydrocarbons, olefins, halogenated hydrocarbons, esters, aldehydes, ketones and other compounds

In the sense of environmental protection, it mainly refers to the type of volatile organic compounds

The odor of most VOCs is not obvious, but some VOCs, such as alcohols, aldehydes, ketones, aromatic hydrocarbons, sulfur-containing compounds, etc.