Table 1.

Virtual PM_2.5 emissions flow from a net importer of products (source region of PM_2.5) to a net exporter of products (receptor). The contributions of a region to itself (referred to ‘domestic’) are shown in italics (unit: Gg).

	receptor region
source region	NA	EU	SA	EA
NA	1343.2	55.0	100.8	800.7
EU	74.1	1008.5	126.0	716.7
SA	6.6	7.2	2577.5	82.2
EA	57.6	29.9	59.2	7666.5