Bisphenol A (BPA) in China: A review of sources, environmental levels, and potential human health impacts

Human exposure to bisphenol A

The decontamination of bisphenol A (BPA) from aqueous solution by graphene adsorption was investigated. The maximum adsorption capacity (qm) of graphene for BPA obtained from a Langmuir isotherm was 182 mg/g at 302.15 K, which was among the highest values of BPA adsorption compared with other carbonaceous adsorbents according to the literature. Both π–π interactions and hydrogen bonds might be responsible for the adsorption of BPA on graphene, and the excellent adsorption capacity of graphene was due to its unique sp2-hybridized single-atom-layer structure. Therefore, graphene could be regarded as a promising adsorbent for BPA removal in water treatment. The kinetics and isotherm data can be well described by the pseudo-second-order kinetic model and the Langmuir isotherm, respectively. The thermodynamic studies indicated that the adsorption reaction was a spontaneous and exothermic process. Besides, the presence of NaCl in the solution could facilitate the adsorption process, whereas the alkaline pH rang...

Decontamination of Bisphenol A from Aqueous Solution by Graphene Adsorption

https://www.sewagesludgeactionnetwork.com/files/Food_Grown_in_Sludge_Emerging_Contaminants.pdf

Review of ‘emerging’ organic contaminants in biosolids and assessment of international research priorities for the agricultural use of biosolids

Phenols and their derivatives commonly exist in the environment. These compounds are used as the components of dyes, polymers, drugs and other organic substances. The presence of phenols in the ecosys - tems is also related with production and degradation of numerous pesticides and the generation of industrial and municipal sewages. Some phenols are also formed during natural processes. These compounds may be substituted with chlorine atoms, may be nitrated, methylated or alkylated. both phenols and catechols are harmful ecotoxins. Toxic action of these compounds stems from unspecified toxicity related to hydrophob - ocity and also to the generation of organic radicals and reactive oxygen species. Phenols and catechols re - veal peroxidative capacity, they are hematotoxic and hepatotoxic, provoke mutagenesis and carcinogenesis toward humans and other living organisms.

Phenols - sources and toxicity

Bisphenol A: emissions from point sources.

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Bisphenol A: emissions from point sources.