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  • Are DEHP and DBP major phthalates?
  • Studies indicated that DEHP and DBP were indeed major phthalates globally and were also predominant PAE congeners detected in other watersheds , . DEHP is widely used as a plasticizer in various plastics, accounting for about 80 % of plasticizer production in China .
  • Why is DEHP used as a plasticizer?
  • DEHP is widely used as a plasticizer in various plastics, accounting for about 80 % of plasticizer production in China . Its long alkyl chain and low water solubility contribute to its resistance to biodegradation .
  • Which phthalate is a priority endocrine-disrupting compound?
  • Most PAEs, including diethyl phthalate (DEP), benzyl butyl phthalate (BBP), dibutyl phthalate (DNBP), and di (2-ethylhexyl) phthalate (DEHP), have been declared priority pollutants and endocrine-disrupting compounds by the United States Environmental Protection Agency (USEPA) and other international agencies .
  • Which phthalates are most abundant in the beiyun River basin?
  • Among the six PAE congeners, DEHP and DBP were the most abundant in both water and sediment samples in the Beiyun River basin. Studies indicated that DEHP and DBP were indeed major phthalates globally and were also predominant PAE congeners detected in other watersheds , .
  • What chemicals are used in phthalate chemistry?
  • All chemical standards, such as dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), benzyl butyl phthalate (BBP), di-n-octyl phthalate (DNOP), di (2-ethylhexyl) phthalate (DEHP), and bisphenol A (BPA), at a concentration of 1000 mg/L, were purchased from J&K Chemical, Ltd (St. Louis, MO, USA).
  • Do urban rivers contain phthalate esters & BPA?
  • Urban rivers are closely related to human life, and due to the widespread use of plastic products, rivers have become important carriers of pollutants such as microplastics (MP), phthalate esters (PAEs), and bisphenol A (BPA). However, our understanding of the distribution characteristics and relationships of MP, PAEs, and BPA in rivers is limited.