PCBs

The Palestinian Central Bureau of Statistics (PCBS) is the statistical organisation of the Palestinian National Authority. It carried out its first full census of the West Bank and Gaza Strip in 1997.As well as providing statistics on the retail price index and other things one might expect in any country, the PCBS also provides statistics tailored to the particular issues faced by Palestinians in the West Bank And Gaza Strip, such as their 2003 "Survey on the Impact of separation Wall on the Location Where it Passed Through".
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Polychlorinated biphenyls (PCBs) are a class of organic compounds with 1 to 10 chlorine atoms attached to biphenyl and a general chemical formula of C12H10-xClx. Most PCBs were manufactured as cooling and insulating fluids for industrial transformers and capacitors, and also as stabilizing additives in flexible PVC coatings of electrical wiring and electronic components. PCB production was banned in the 1970s due to the high toxicity of most PCB congeners and mixtures. PCBs are classified as persistent organic pollutants.
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