Common VOCs in buses include benzene, toluene, formaldehyde, acetaldehyde, styrene, etc., mainly from the interior parts of the bus itself:
(1) Plastic decorative parts: mainly include VOCs generated by injection molding process and painting, release agent and paint. Harmful gases mainly include benzene, lipids and ethers;
(2) Carpets, felts, leather and textile fabrics and other interior parts: because formaldehyde is a common product in the production and processing of these products, such as synthetic raw materials as adhesives, preservatives, and printing and dyeing auxiliaries;
(3) Adhesives and organic additives in the production process of buses, and various adhesives are needed in the process of interior decoration and fixing. Generally, solvent-based adhesives are used. Benzene and ethers are common volatile organic compounds of this type of adhesive. VOC in the bus can cause symptoms such as nausea, vomiting, cough, asthma, chest tightness, wheezing, and itchy skin. It can also cause damage to the liver, kidneys, lungs, and central nervous system. Moreover, formaldehyde and benzene compounds are potential carcinogens, and long-term exposure can increase the risk of cancers such as leukemia and nasopharyngeal carcinoma.
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