Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2020 Jul 14.

Published in final edited form as: Atmos Environ (1994). 2019 Oct 1;214:10.1016/j.atmosenv.2019.116883. doi: 10.1016/j.atmosenv.2019.116883

Table 4:

Column budget of trace metals over continental North America in our standard simulation for 2013.

Mostly crustal elements	Emissions (Gg)		Deposition (Gg)		Export (Gg)

	Natural and biomass burning	Anthropogenic	Wet	Dry

K	1115	52	27	22	1118
Si	222	175	471	61	−134^a
Mg	121	5.5	64	6.8	56^a
Fe	98	45	218	26	−102^a
Al	82	59	168	22	−49
Ca	101	45	168	21	−42^a
Ti	7.0	4.9	16	2.0	−5.7^a
Mn	1.7	1.1	4.6	0.6	−2.4

Heavy metals	Emissions (Mg)		Deposition (Mg)		Export (Mg)

Pb	728	1736	2172	309	−17
Ni	163	272	422	61	−48
As	75	312	253	44	89^a
Cd	7.5	17	26	3.5	−5.6^a

^a

Number difference due to rounding.