A new study found that Mark Prigg was published at 16: 18 EDT on April 2, 2014, update: 16: 19 EDT on April 2, 2014, and infants may be exposed to a high level of chemicals in the mattress when they sleep. The researchers tested the foam liner in the crib mattress and found that they released a large amount of volatile organic compounds (VOCs), which are also potentially harmful chemicals in household items such as detergents and fragrance sprays. Today, they warn parents to inflate the mattress appropriately to minimize risk. The researchers studied 20 samples of polyurethane foam and polyester foam liner on new and old crib mattresses for the Study of the journal Environmental Science and Technology, published in February. 20 mattress samples from 10 manufacturers. Researchers choose not to disclose the name of the manufacturer under study, so that their results can attract widespread attention to the product part without paying attention to a specific brand. Boor found that 50 to 60% of the baby\'s day decided to do the study after going to bed. Infants are considered very vulnerable to the adverse effects of exposure to indoor air pollutants on health. The person in charge of the study said that I would like to learn more about the chemicals they may breathe in while sleeping early in development. \"The study also helps raise awareness about the various chemicals that may be present in the crib mattress, which are often not listed by the manufacturer. The team found that the VOCs released by the new crib mattress was about four times that of the old crib mattress, and the body heat increased emissions. They say chemical emissions are strongest in the direct breathing area of sleeping babies. The researchers concluded that the mattress emitted VOCs at an average rate of 87. 1 microgram per square meter per hour, while the old mattress discharged VOCs at a rate of 22. 1 microgram per square meter per hour. Overall, Boor says the baby crib mattress releases VOCs at a rate comparable to other consumer and indoor materials, including laminate flooring (20 to 35 micrograms per square meter per hour) and wall cover (51 micrograms per hour per square meter ). The researchers found more than 30 kinds of volatile organic compounds in the mattress, including phenol, new eleven acids and linalool. The most abundant chemicals found in the crib mattress foam, such as citene (a chemical that gives the product a lemon scent), are often found in many cleaning and consumer goods. Charles J. , indoor air quality expert. Weschler, associate professor of environmental and occupational medicine at Rutgers University, said he did not think the level of chemical concentration in the mattress was a concern, but he thought the study was valuable. Weschler said it was a pleasure to see the crib mattress as an important source of chemicals in the baby\'s environment, and who noted that due to this study, one day it is possible to perform an analysis of harmful chemicals on the crib mattress. The researchers found that the VOC level in the sleeping baby breathing area was significantly increased compared to the air in the bulk room, making the baby exposed to twice the VOC level of the person standing in the same room. In addition, since the air volume inhaled by infants per body weight is significantly higher than that of adults, the sleep time is longer, and when exposed to the same level of VOCs, their inhalation exposure is about 10 times that of adults, the researchers said. \"Our findings suggest reuse of old cribs or extended drying times -- Xu Ying, an assistant professor, said the suspension could help reduce VOC exposure in infants. Although the old mattress seems to be a good choice, the researchers noted that the old mattress may contain other harmful chemicals, such as flame retardant, which is now prohibited in the mattress foam. Brandon Boor, a graduate student in the Department of Civil, Architectural and environmental engineering at the Cockrell School, conducted the study under the supervision of Assistant Professor Yingxu and Associate Professor Atila Novoselac. Boor also worked with Helena joenstrom, a senior researcher at the VTT technology research center in Finland. 20 mattress samples from 10 manufacturers. Researchers choose not to disclose the name of the manufacturer under study, so that their results can attract widespread attention to the product part without paying attention to a specific brand. According to US data, at present, little is known about the health impact of VOCs levels in householdsS. Environmental Protection Bureau. Among the many chemicals considered VOCs are formaldehyde, benzene, toluene, vinyl chloride and acetone. The crib mattresses analyzed in this study do not contain these organic compounds. Richard Corsey, chairman of the Department of Civil, Architectural and Environmental Engineering, added that understanding the sleeping environment is important for the health of infants and adults. \"We need to have a better understanding of the complex sleeping environment to improve it and reduce the harmful effects of related contaminants on infants,\" Corsi said . \". The National Science Foundation and the Nordic research opportunities project funded the project. Boor conducted the study in Finland, where he currently lives. The University of Texas at Austin is committed to transparency and disclosure of all potential conflicts of interest. All UT investigators involved in the study submitted their required financial disclosure forms to the university. None of the researchers reported receiving any research funding that would create a conflict of interest or that there was such a conflict. Precautions found by parents suggest reuse of old cribs or extended drying time It may help reduce VOC exposure in infants during outings. The repeated use of the crib mattress must be carefully considered, as the old mattress may contain toxic substances prohibited from use, such as flame retardant.