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21

MERCURY – ACTING NOW!

Compiled for the first time the global

distribution of mercury contaminated sites

and their mercury releases and emissions

to the atmosphere and the aquatic

environment, as presented in the 2013 UNEP

Global Mercury Assessment.

80-

600

3700

2000-

2950

2000

300-

600

1700-

2800

3200

380

<600

Geogenic

Anthropogenic

Anthropogenic

Biomass

burning

Soil and

vegetation

Deposition

to oceans

Rivers

Deposition

to land /

freshwater

Geogenic

Oceans

Anthropogenic

Natural

Re-emissions / Re-mobilization

Units: tonnes

1 tonne =1000kilograms

Anthropogenic emissions

represent 30 % of total

emissions to air, exceeding

the natural sources that

account for 10 %. The

remaining 60 % is from

re-emissions, likely to

be predominantly of

anthropogenic origin.

Global mercury budgets,

based on models, illustrate

the main environmental

compartments and

pathways of importance.

Source: Global Mercury

Assessment 2013: Sources,

Emissions, Releases and

Environmental Transport,

UNEP 2013

Source: Technical

Background Report for the

Global Mercury Assessment

2013, UNEP 2013