POPs Chemicals

    POPs are organic compounds considered to be toxic for humans and other living organisms, bioaccumulative, persistent in the environment and able to travel long distances from their point of origin. In addition, it is the moderate volatility of POPs that enables their long-distance atmospheric transport. POPs have low water solubility and high lipid solubility and are therefore easily transported through phospholipids in biological membranes and later deposited in adipose tissue and other tissues with high lipid levels. All these characteristics cause POPs to be widespread in the environment, even in the regions where they have never been used. The above stated properties of POPs make the specified chemicals one of the most important topics within the field of environmental protection, representing the issue which requires global solution. Such global solution is defined in the Stockholm Convention which entered into force in 2004.

   Having in mind that in period from 2010-2012 amendments to the Stockholm Convention came into force which extended the Annexes for 10 new POPs chemicals (chlordecone, hexabromobiphenyl (HBB), pentachlorobenzene, lindane (γ-HCH), alpha hexachlorocyclohexane (α-HCH), beta hexachlorocyclohexane (β-HCH), tetrabromodiphenyl ether and pentabromodiphenyl ether, hexabromodiphenyl ether and heptabromodiphenyl ether – (PBDEs), perfluorooctane sulfonic acid, its salts and perfluorooctane sulfonyl fluoride (PFOS), including endosulfan and its related isomers, given in table 1, pursuant to Article 7 of this Convention, the Republic of Serbia is obliged to update NIP.

Table 1. Old and new POPs chemicals

Group of POPs 12 old POPs 10 new POPs
POPs pesticides aldrin, chlordane, DDT, dieldrin,
endrin, heptachlor, hexachlorobenzene (HCB),
mirex and toxaphene
lindane (γ- HCH), chlordecone, pentachlorobenzene,
α-HCH, β-HCH and endosulfan
Industrial POPs PCBs PFOS, hexabromobiphenyl PBDEs (tetrabromodiphenyl
ether and pentabromodiphenyl ether;
hexabromodiphenyl ether and heptabromodiphenyl ether)
un POPs PCDDs, PCDFs, PCBs and hexachlorobenzene (HCB) α-HCH, β-HCH and pentachlorobenzene

PCBs Serbia


The aim of this page is to show information on health effects, environmental impact, technical information and general information on polychlorinated biphenyls commonly known as PCBs. The main scope is to inform Serbian audience about National PCB Management Plan, all relevant legal framework and regulations in the Republic of Serbia and worldwide. This web page will help all potential PCBs owners to find all relevant information on technical guidelines, safety procedures, protocols and standard operating procedures for PCBs contaminated oils, equipment and soil, list of services, analytical procedures, laboratories, etc.

The Stockholm convention

The Stockholm Convention on Persistent Organic Pollutants (POPs) was adopted by the Conference of Plenipotentiaries on 22 May 2001 in Stockholm, Sweden. The Convention entered into force on 17 May 2004.



Polychlorinated biphenyls (PCBs) are aromatic, synthetic chemicals which do not occur naturally in the environment. They consist of the biphenyl structure with two linked benzene rings in which some or all of the hydrogen atoms have been substituted by chlorine atoms.


Where PCBs could be found?

PCBs were first identified in the nineteenth century and started being manufactured on an industrial scale in 1929. They were intensively used between 1920 and 1980.


Impacts of PCBs on health and environment

PCBs are identified as persistent, bioaccumulative and toxic (PBT). Because of their persistence, PCBs continue to be found in the environment and contamination from legacy sources remains a problem.