What Are Persistent Organic Pollutants (POPs)?
Persistent Organic Pollutants (POPs) are a class of organic compounds that do not break down easily in nature and are widely found in agricultural pesticides, industrial chemicals, and byproducts of manufacturing processes. Once released, these substances do not easily disappear. They are bioaccumulative, meaning they accumulate in the fatty tissues of living organisms and spread as these organisms migrate. They can even travel long distances through the air and water, leading to the presence of POPs in regions where they have never been produced or used, making them a global environmental challenge that transcends national borders.
Humans may be exposed to POPs through contaminated food, drinking water, air, or occupational exposure, which may have the following effects on human health:
- Effects on the immune and nervous systems
- Damage to reproductive and developmental functions
- Disruption of the endocrine system
- Some substances pose a carcinogenic risk
To mitigate these risks, the international community adopted the Stockholm Convention, which requires countries to establish regulations to phase out and restrict the production, use, and release of specific POPs. Common examples of POPs include dioxins and furans, polychlorinated biphenyls (PCBs), certain pesticides (such as DDT), brominated flame retardants, and per- and polyfluoroalkyl substances (PFAS, such as PFOS, PFOA, and PFHxS), among others.
In response to the global threat posed by POPs, the United Nations adopted the Stockholm Convention in 2001 (which entered into force in 2004), with the goal of eliminating or restricting the production, use, and release of POPs. To date, 186 countries and regions have ratified the treaty and enacted national legislation. The Convention initially targeted 12 chemicals known as the “Dirty Dozen” (such as DDT, PCBs, and dioxins), and has continued to expand its list of regulated substances in response to scientific evidence and international deliberations (for example, adding short-chain chlorinated paraffins (SCCPs) and hexabromocyclododecane (HBCD), among others).
The POPs Regulation lists controlled substances in Annex I and Annex II and imposes prohibitions or restrictions on them as required. Violations of these requirements may result in penalties or fines from the competent authorities and could lead to a product being banned from the market or withdrawn from the EU market. Below, SGS has compiled a list of common controlled substances in the industrial sector and their applications to help you quickly grasp the key points of the regulation.
Compliance begins with transparency. Companies must first have clear visibility into their products, raw materials, suppliers, and regulatory risks before they can effectively manage compliance.
The following are key questions that companies should proactively consider:
Does the company have complete, reliable, and traceable information?
- What raw materials and chemical substances are used in the products? Does the company have complete, reliable, and traceable information about them?
- Which suppliers provide the components? Are the relevant test reports and substance declarations still valid and up to date?
- Do the concentrations of relevant substances exceed applicable regulatory limits? Are virgin or recycled materials being used? For example, do the recycled materials contain any regulated flame retardants?
- Which products are exported to which countries or regions, and which latest applicable regulations apply?
- When regulations are updated or materials are changed, which part numbers, suppliers, or products may be affected??
Companies should establish traceable product compliance information through material data collection, supplier management, and testing and verification. This enables them to identify and address compliance risks at an early stage.
Taking EU POPs as an example, if a company does not know whether recycled plastics contain regulated flame retardants, or cannot trace the presence and concentration of PFAS in materials supplied by its vendors, it cannot reliably determine whether its products meet applicable regulatory requirements. This illustrates the compliance risks that can arise from a lack of transparency.
In complex, multi-tiered supply chains, identifying POPs can be a major challenge when products contain numerous components sourced from different suppliers. Companies need to accurately determine whether their products contain substances regulated under the EU POPs Regulation and whether the concentrations of these substances comply with applicable regulatory limits.
As a world-leading testing, inspection, and certification company, SGS offers the following two service packages for testing substances regulated under POPs requirements, helping companies reduce costs and streamline compliance management
- SGS EU POPs Solution A: Common Industrial Substance Testing (18 Substances)
- Service Focus: Targeted testing of high-risk regulated substances.
- Target Audience: Companies with relatively simple product lines or those seeking to prioritize testing based on risk levels.
- SGS EU POPs Solution B: Comprehensive EU POPs Testing (33 Substances)
- Service Focus: Comprehensive testing for all EU POPs-regulated substances in products.
- Target Audience: Companies that need to meet the stringent requirements of major brands or buyers, or that need to provide comprehensive test reports and declarations.
As regulatory requirements continue to evolve, SGS helps you integrate material information and supplier management. Through professional testing and verification, we enhance supply chain transparency, proactively identify and address potential risks, and help minimize overall product compliance risks.
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