It is also regarded as hazardous and carcinogen. Studies of these effects in workers exposed mainly to styrene have been inconclusive. The human health effects from exposure to low environmental levels of styrene are unknown. Styrene can enter the environment after being released by the manufacturer in the form of a gas or liquid. According to scientists, inhalation of styrene gas is the major route of exposure in humans. Effects of Styrene … Styrene is regarded as a "known carcinogen", especially in case of eye contact, but also in case of skin contact, of ingestion and of inhalation, according to several sources. Noise protection is important for workers exposed to styrene. Simultaneous exposure to noise and styrene appears to increase potential adverse effects. Exposures to styrene in humans can cause a respiration problem. Hearing impairment—ototoxicity—is an area of concern for certain workplace exposures. If you breathe high levels of styrene (more than 1000 times higher than levels normally found in the environment), you may experience nervous system effects such as changes in color vision, tiredness, feeling drunk, slowed reaction time, concentration problems, or balance problems. "Clearly, the best place to study the possible health effects of styrene exposure is in the reinforced plasticsindustry, where no butadiene is involved. An updated risk assessment of styrene was completed in 2019, confirming styrene’s safety for the general population and adding to the body of knowledge on potential health effects in workplace exposures. o It is a known lab animal carcinogen and a … Read More Many reports in the literature suggest that long-term exposure to styrene may exert a variety of effects on the nervous system, including increased choice reaction time and decreased performance of color discrimination and color arrangement tasks. Styrene can stay in the air for several days. What about other health effects? Health effects. How does styrene gas affect the body? Health Impacts of Styrene Exposure. It has been reported that 60-70% of the inhaled gas is rapidly absorbed by the liver and lung tissues. Acute (short-term) exposure to styrene in humans results in mucous membrane and eye irritation, and gastrointestinal effects. Styrene oxide is considered toxic and possibly mutagenic. Workers exposed to large amounts of styrene can develop irritation of the eyes and breathing passages. Styrene Risk Assessment. It can react with the oxygen and form styrene dioxide which is very lethal. You know that smell… Styrene is a common and unmistakable smell in the world of composites – the can of Bondo, the mixing of primer, maybe it’s all day every-day at work. Health Effects and Regulation of Styrene (CASRN 100-42-5) (also known as vinylbenzene, ethenylbenzene, cinnamene, or phenylethylene) o Styrene is the monomer used to make polystyrene and expanded polystyrene packaging. With long-term and large exposures, workers using styrene have had injury to their nervous systems. Styrene is largely metabolized into styrene oxide in humans, resulting from oxidation by cytochrome P450. of these long-term effects include fatigue, poor coordination, difficulty in concentrating, loss of short-term memory, and personality changes such as increased anxiety, nervousness, and irritability. Sufficient information exists to perform a meta-anal … However, studies on animals say that animals may be more sensitive than humans to the nose and liver effects. How Styrene Affects People’s Health. 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