Table 1.

Population, daily mortality, and ambient air pollution concentrations (ppb) by monitoring location.

						Mean pollutant concentrations
Region	Population (×105)	Nonaccidental deaths/day	Cardiac deaths/day	Respiratory deaths/day	PM10 (μg/m3)	O3	SO2	CO
Las Condes	5.01	5.17	1.61	0.66	65.02	135.52	9.12	0.92
Cerrillos	8.92	11.22	3.01	1.25	84.81	92.94	12.92	1.15
El.Bosque	9.15	11.92	3.15	1.26	86.41	88.02	14.27	1.38
La Florida	13.35	15.52	4.30	1.71	90.22	112.19	13.1	1.43
Independencia	4.21	8.31	2.23	1.10	78.58	89.64	34.06	1.37
Santiago Centro	4.98	8.99	2.83	1.21	82.6	101.72	13.5	1.48
Pudahuel	8.08	8.56	2.08	1.20	91.38	84.94	9.79	1.2
Average	53.70a	69.69a	19.21a	8.38a	84.88b	100.13b	14.08b	1.29b

^aTotal number summed over all seven urban centers.

^bPopulation-weighted average pollutant concentration.