Table 2.

Ingestion, inhalation, and dermal contact exposure risks of eight heavy metals in PM_1.0 and PM_2.5 in Harbin City.

Elements	ADDIng (mg‧kg−1·d−1)			ADDderm (mg·kg−1·d−1)			ADDInh (mg·kg−1·d−1)
	Children	Females	Males	Children	Females	Males	Children	Females	Males
Cr	1.33 × 10–2	1.83 × 10–3	1.77 × 10–3	7.16 × 10–5	4.88 × 10–5	5.23 × 10–5	9.26 × 10–8	1.92 × 10–7	2.22 × 10–7
Ni	2.62 × 10–3	3.61 × 10–4	3.50 × 10–4	1.41 × 10–5	9.65 × 10–6	1.03 × 10–5	1.83 × 10–8	3.79 × 10–8	4.38 × 10–8
Cd	1.21 × 10–3	1.67 × 10–4	1.61 × 10–4	6.52 × 10–7	4.45 × 10–7	4.77 × 10–7	8.44 × 10–9	1.75 × 10–8	2.20 × 10–8
Co	5.71 × 10–4	7.87 × 10–5	7.62 × 10–5	3.08 × 10–6	2.10 × 10–6	2.25 × 10–6	3.99 × 10–9	8.25 × 10–9	9.54 × 10–9
Pb	2.14 × 10–2	2.95 × 10–3	2.56 × 10–3	4.62 × 10–3	7.89 × 10–4	7.56 × 10–4	1.50 × 10–7	3.10 × 10–7	3.58 × 10–7
Cu	1.13 × 10–2	1.56 × 10–3	1.35 × 10–3	2.44 × 10–4	4.17 × 10–5	3.99 × 10–5	7.90 × 10–8	1.64 × 10–7	1.89 × 10–7
Zn	6.73 × 10–2	9.28 × 10–3	8.05 × 10–3	1.45 × 10–3	2.48 × 10–4	2.38 × 10–4	4.70 × 10–7	9.74 × 10–7	1.13 × 10–6
Mn	1.05 × 10–2	1.45 × 10–3	1.26 × 10–3	2.27 × 10–4	3.88 × 10–5	3.72 × 10–5	7.35 × 10–8	1.52 × 10–7	1.76 × 10–7
Σ	1.28 × 10–1	1.77 × 10–2	1.56 × 10–2	6.64 × 10–3	1.18 × 10–3	1.14 × 10–3	8.96 × 10–7	1.85 × 10–6	2.14 × 10–6