Persistent Organic Pollutants and Heavy Metals (Including Mercury) - The Changing Arctic Environment: The Arctic Messenger - page 173

ber were in the minority, but now both agreements are moving beyond 20 and there seems
to be no end in sight. Several studies have been published that suggest a range of between
about 50 to hundreds of substances presently in use that could be logical candidates for
control! If this turns out to be the case, it reflects very poorly on the procedures that allow
such chemicals into commerce. For a glimpse at the extent of the number of substances
presently being used in commerce that to some degree possess the properties of POPs (per-
sistence, ability to travel in the environment far from source, ability to biomagnify and
chronic toxicity), take a look at the papers by Muir and Howard published in 2006 and by
Martin Scheringer in 2012 - all listed in the bibliography. Table 8.2 lists the substances
controlled under the CLRTAP POPs protocol and the Stockholm Convention at the time of
their original negotiation and as of May 2013.

Table 8.2 Substances controlled under the CLRTAP POPs protocol and the Stockholm Convention (as of
May 2013)

Agreement Substances Originally Listed Substances Added

CLRTAP
Protocol

Aldrin; chlordane; chlordecone;
dieldrin; endrin; hexabromobiphenyl;
mirex; toxaphene; DDT; heptachlor;
hexaclorobenzene; PCBs; HCH
(including lindane); dioxins and furans;
and PAHs

Hexachlorobutadiene;
octabromodiphenyl ether;
pentachlorobenzene;
pentabromodiphenyl ether;
perfluorooctane sulfonates;
polychlorinated naphthalenes; and
short-chain chlorinated paraffins

Stockholm
Convention

Aldrin; chlordane; DDT; dieldrin;
endrin; heptachlor; hexachlorobenzene
(HCB); mirex; toxaphene;
polychlorinated biphenyls (PCB);
polychlorinated dibenzo-p-dioxins
(PCDD); and polychlorinated
dibenzofurans (PCDF)

Chlordecone; technical endosulfan and
its related isomers; alpha
hexachlorocyclohexane; beta
hexachlorocyclohexane; lindane;
hexabromobiphenyl and
heptabromodiphenyl ether (commercial
octobromodiphenyl ether);
hexabromocyclododecane;
pentachlorobenzene; perfluorooctane
sulfonic acid (including its salts and
perfluorooctane sulfonyl fluoride); and