A number of pollutants (e.g. Hg and some POPs) are characterized by long residence time in the atmosphere (up to one year) resulting in global character of there dispersion and ability to transport between the continents. Besides, cycling of these substances between different environmental media also facilitates their transport potential in longer perspective. Therefore, assessment of the environment pollution with such contaminants should be performed on a global scale taking into account possible contribution of intercontinental transport to regional pollution.

Examples of the global scale assessment of pollution levels of some HMs and POPs are given below. More detailed information is available in the MSC-E reports, Presentations and TF HTAP activity.

Numerical data are available on request (This email address is being protected from spambots. You need JavaScript enabled to view it.).

Heavy metals

Global distribution of annual mean air concentration of Pb in 2020. Pink frame denotes boundaries of the EMEP region., ng/m3

Global distribution of annual mean air concentration of Cd in 2020. Pink frame denotes boundaries of the EMEP region., ng/m3

Global distribution of annual mean air concentration of Hg in 2020. Pink frame denotes boundaries of the EMEP region., ng/m3

Persistent Organic Pollutants

Global distribution of annual mean air concentration of B(a)P in 2020. Pink frame denotes boundaries of the EMEP region., ng/m3

Global distribution of annual mean air concentration of PCDD/Fs in 2020. Pink frame denotes boundaries of the EMEP region., fg TEQ/m3

Global distribution of annual mean air concentration of PCB-153 in 2020. Pink frame denotes boundaries of the EMEP region., pg/m3

Global distribution of annual mean air concentration of HCB in 2020. Pink frame denotes boundaries of the EMEP region., pg/m3