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Fire-resistant coatings have been favored to mitigate fire threat of billion-ton flammable materials. Their durable application inevitably expects high resistance in various complex environments, however, discarded stable materials will turn...

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Phthalates are widely used in industry as solvents, additives and plasticizers. Some phthalates and their monoester metabolites are known to cause carcinogenic, toxic or endocrine-modulating effects. Chorion tissues as human early embryo are the base of organogenesis. Embryo (3-8 weeks) is sensitive period of teratogensis. With the development of industrialization, in addition to genetic factors, environmental factors become an important reason for human reproductive system defect, particularly under the interaction of the environmental factors and genetic factors. Recently we have studied human chorion tissues to see whether the phthalates especially their monoester metabolites are exist in. In the result five phthalates and monoester metabolites such as dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), di(2-ethylhexyl) phthalate (DEHP), monobutyl phthalate(MBP) and mono(2-ethyl-hexyl) phthalate(MEHP) are discovered, that means that phthalates and their monoesters both can pass through embryo and affect fetus before birth.