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Polychlorinated biphenyl molecule

Polychlorinated biphenyl molecule


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Polychlorinated biphenyl molecule

Polychlorinated biphenyl molecule. Molecular model of the polychlorinated biphenyl (PCB) 3, 4, 5, 3 4 5 -hexachlorobiphenyl. The atoms are represented as rods and are colour-coded: carbon (blue), hydrogen (white) and chlorine (green). PCBs are organic compounds that are highly stable, good insulators and have low electrical conductivity. They were widely used in capacitors and transformers. The discovery, in the 1960s, that PCBs are toxic and carcinogenic, and accumulate in the food chain led to tight regulation of their use and disposal, and phasing out of their production

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6275233

© DR TIM EVANS/SCIENCE PHOTO LIBRARY

Carcinogen Carcinogenic Compound Compounds Dielectric Molecules Pollutant Pollutants Pollution Structural Toxic Computer Artwork Molecular Molecular Model


EDITORS COMMENTS
This print showcases the intricate molecular structure of a polychlorinated biphenyl (PCB) compound. The model depicts the PCB 3,4,5,3 4 5 -hexachlorobiphenyl with its atoms represented as rods in various colors: carbon in blue, hydrogen in white, and chlorine in green. PCBs were once widely utilized for their exceptional stability, insulation properties, and low electrical conductivity. They found extensive application in capacitors and transformers across industries. However, during the 1960s, it was discovered that these compounds are highly toxic and carcinogenic while also accumulating within the food chain. The alarming revelation prompted stringent regulations on their usage and disposal along with a gradual phasing out of production. This photograph symbolizes the intersection between chemistry and environmental concerns – highlighting how human-made substances can have far-reaching consequences on our ecosystem. Through this visual representation of a PCB molecule's complex structure, we are reminded of the importance of responsible chemical management to safeguard both human health and ecological balance. Science Photo Library presents this artwork as an illustration encompassing themes such as pollution control measures, bioaccumulation risks associated with organic pollutants like PCBs, carcinogenicity studies concerning these compounds' impact on living organisms at a molecular level.

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