Estimating deaths attributable to airborne particles: sensitivity of the results to different exposure assessment approaches

Table 4 Population weighted (PW)-average concentration of PM₁₀ and PM_2.5 from the NINFA-PESCO model, estimated number of attributable deaths (AD) with 50% credibility interval (CrI), and attributable community rate (ACR) per 100 000 inhabitants under different counterfactual scenarios, Emilia-Romagna region (2010)

	PM₁₀ (μg/m³)	RS1-PM₁₀ V = 20 μg/m³			RS2-PM₁₀ V = 9.1 μg/m³			PM_2.5 (μg/m³)	RS1-PM_2.5 V = 10 μg/m³
	PM₁₀ (μg/m³)	AD	50% CrI^a	ACR	AD	50% CrI^a	ACR	PM_2.5 (μg/m³)	AD	50% CrI^a	ACR
Emilia-Romagna region	27.3	190	94, 283	4.4	456	229, 675	10.5	18.6	123	0, 304	2.8
nine capital cities	29.8	91	41, 139	5.9	191	86, 292	12.5	19.2	47	0, 123	3.1
Other cities	25.9	99	53, 144	3.5	265	143, 383	9.4	18.3	75	0, 182	2.7
By municipality dimension
>50 000	29.5	104	48, 158	5.7	222	103, 338	12.2	19.2	56	0, 144	3.1
20 000–50 000	27.5	23	12, 33	4.1	57	31, 82	10.1	19.2	16	0, 39	2.9
10 000–20 000	26.8	31	17, 45	3.7	79	43, 115	9.4	18.9	23	0, 56	2.8
5 000–10 000	26.2	25	13, 36	3.6	66	45, 87	9.4	19.0	20	0, 48	2.8
< 5 000	20.2	7	4, 10	1.7	32	16, 51	7.5	13.7	7	0, 17	1.7

Abbreviations: V counterfactual value, AD attributable deaths, CrI credibility interval, ACR attributable community rate;
RS1-PM₁₀ = reduction scenario where V is equal to 20 μg/m³ annual average (WHO Air Quality Guideline threshold);
RS2-PM₁₀ = reduction scenario where V is equal to annual average concentrations observed in non-urban areas;
RS1-PM_2.5 = reduction scenario where V is equal to 10 μg/m³ annual average (WHO Air Quality Guideline threshold)
^a: The low/upper limit of the credibility interval was calculated as the sum of the low/upper limits of the city-specific credibility intervals

ISSN: 1476-069X