Updated general technical guidelines for the environmentally sound management of wastes consisting of, containing or contaminated with persistent organic pollutants (pops)




НазваниеUpdated general technical guidelines for the environmentally sound management of wastes consisting of, containing or contaminated with persistent organic pollutants (pops)
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Issues under the Stockholm Convention to be addressed cooperatively with the Basel Convention


A. Low POP content

  1. As stated in article 6, paragraph 2 (c), of the Stockholm Convention, the Stockholm Conference of the Parties shall cooperate closely with the appropriate bodies of the Basel Convention to “work to establish, as appropriate, the concentration levels of the chemicals listed in Annexes A, B and C in order to define the low persistent organic pollutant content referred to in paragraph 1 (d) (ii).” Wastes consisting of, containing or contaminated with POPs above the low POP content should, in accordance with article 6, paragraph 1 (d) (ii), be disposed of in such a way that the POP content is destroyed or irreversibly transformed or otherwise disposed of in an environmentally sound manner when destruction or irreversible transformation does not represent the environmentally preferable option.

  2. Recognizing the following considerations:

(a) Disposal of wastes with a high POP content, including waste stockpiles, should be a priority;

(b) Availability of treatment capacity;

(c) Limit values within national legislation are relevant;

(d) Availability of analytical methods; and

(e) Lack of knowledge and data;

the following provisional definitions for low POP content should be applied:

(a) PCBs: 50 mg/kg;9

(b) PCDDs and PCDFs: 15 g TEQ/kg;10

(c) Aldrin, chlordane, DDT, dieldrin, endrin, heptachlor, HCB, mirex and toxaphene: 50 mg/kg for each.11

B. Levels of destruction and irreversible transformation

  1. Recognizing the following considerations:

(a) Both destruction efficiency12 (DE) and destruction removal efficiency13 (DRE) are a function of the initial POP content and do not cover formation of unintentionally produced POPs during destruction or irreversible transformation;

(b) DE is an important criterion for helping to assess technologies for destruction and irreversible transformation, but can be difficult to measure in a reproducible and comparable manner, especially on a regular basis;

(c) DRE considers only emissions to air;

(d) BAT and BEP set safe design and operating conditions, including expected destruction efficiencies, in particular circumstances on a technology by technology basis;

(e) BAT and BEP have not been identified for all disposal methods;

(f) Existence of pertinent national legislation and international rules, standards and guidelines;

(g) Lack of knowledge and data;

The following provisional definition for levels of destruction and irreversible transformation, based upon absolute levels (i.e., waste output streams of treatment processes) should be applied:

(a) Atmospheric emissions:

PCDDs and PCDFs: 0.1 ng TEQ/Nm3;14

All other POPs: pertinent national legislation and international rules, standards and guidelines, examples of pertinent national legislation can be found in annex II;

(b) Aqueous releases: pertinent national legislation and international rules, standards and guidelines, examples of pertinent national legislation can be found in annex II;

(c) Solid residues: POP contents should be below the low POP contents defined in section A above of this chapter. However, if the POP content of unintentionally produced PCDD/PCDFs is above the low POP content defined in section A, the solid residues should be treated in accordance with section IV.G.

In addition, technologies for destruction and irreversible transformation should be operated in accordance with BAT and BEP.

C. Methods that constitute environmentally sound disposal

  1. Section G of chapter IV below contains a description of methods that are considered to constitute environmentally sound disposal of wastes consisting of, containing or contaminated with POPs.
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