Skip to main content

Advertisement

Table 3 Exposure Metrics for Weekly Average (Lag06) Apparent Temperature and Air Pollutants during the Cold Season, by California County, 1995-2009 (n = 7969)

From: The impact of high apparent temperature on spontaneous preterm delivery: a case-crossover study

County Case Mean
Apparent
Temperature,
°F (5th, 95th)
Case-Control
Difference
°F
Minimum
Apparent
Temperature,
°F (5th, 95th)
Maximum
Apparent
Temperature,
°F (5th, 95th)
Max O3 a,
ppb (5th,95th )
Max COa,
ppm (5th,95th)
Max NO2 a,
ppb (5th,95th )
Max SO2 a,
ppb (5th,95th)
Mean PM2.5 a, µg/m3 (5th, 95th)
Alameda 49.6(41.8-57.2) 3.3 41.4(31.9-50.6) 58.4(49.8-68.2) 33.3(16.5-50) 1.5(0.5-3.2) 32.9(18.5-48.5) 4.3(1-8.5) 11.7(3.3-30.9)
Butteb 48.2(38.1-55.3) 3.6 38.9(30.1-47.8) 58.1(47.1-68.7) 27.6(14-41.5) 3(0.9-5.3) 32.8(19-43.5) N.A. 12.3(3.4-23.5)
Contra Costa 48.6(39.6-57.9) 3.7 40(30.5-49) 58.3(47.8-71.6) 34.8(15.5-52.5) 1.3(0.4-2.8) 28.5(14.5-42) 4(1-10) 13(3.5-35.8)
El Dorado/Amador 45.8(37.8-56.2) 3.9 37.9(30.1-46.4) 54.9(44.3-67.8) 39.5(22.5-62.5) 0.5(0.2-0.8) N.A. N.A. N.A.
Madera 47.2(37.9-61.3) 4.3 36.6(26.8-45.8) 58.5(48-76.6) N.A. N.A. N.A. N.A. N.A.
Marin 46(38.2-53.6) 3.1 37.9(28.6-46) 55(46.5-65) 28.1(10.5-43) 1.5(0.6-3.5) 30.5(18.5-45) N.A. N.A.
Merced 46(39.5-52.8) 2.1 36.2(31.3-43.5) 57.1(49.5-66.7) 36.1(29-45.5) N.A. 18.9(9.5-30.5) N.A. N.A.
Monterey 45.8(34.7-53.1) 3.9 37.3(24.4-47.4) 55.9(50.4-63.1) 37.3(22.5-49.5) 1(0.3-1.8) 19.8(6-32) N.A. N.A.
Napa/Lake 47.2(38.2-55.2) 4.1 36.7(26.6-47) 58.2(49.7-69.4) 32.9(16.5-48) 1.6(0.5-3.1) 26.6(13-38.5) N.A. N.A.
Nevada/Fresno 49.4(39-61.6) 4.5 39.9(30.2-49.3) 59.3(47.2-74.8) 42(16.5-72.5) 1.6(0.4-5) 35.5(19-58.5) 2.4(0-7) 28(5.5-66.5)
Placer 48.6(37.5-60.1) 4.3 40.4(30.4-49.7) 57.5(45.3-70.6) 34.1(15.5-54.5) 1.1(0.4-2.4) 28.8(8.5-45.5) 1.8(0-5) N.A.
Sacramento 48.9(38.9-59.8) 4.1 40.3(30.4-49.5) 58.4(46.6-73.2) 36(14-58.5) 1.6(0.5-3.8) 30(14-46.5) 3.3(0-10) 16.9(4-48)
San Benito 51.6(47.7-57.1) 4 41.3(36.9-52.4) 63.2(56.6-70.2) 42(28.5-53) N.A. N.A. N.A. N.A.
San Francisco 50.9(44.4-57.4) 3 45(38.2-51.8) 57.6(50.3-66.7) 30(13-45) 1.6(0.6-3.3) 37(22.5-52.5) 4.6(1-10.5) 13(4.3-30.3)
San Joaquin 48.4(38.1-60.1) 4.1 39(28.9-48) 58.8(47.1-73.3) 31.6(9.5-55) 1.6(0.5-4.1) 33.1(22-48.5) N.A. 22.9(5.5-45.5)
San Mateo 50(43.8-56.5) 2.8 43.7(37.3-50.2) 57(49.5-65.4) 31.1(13-46.5) 1.9(0.7-4) 31.8(18.5-46) 4.4(1-10) 13.1(4.2-30.1)
Santa Clara 50.6(42.3-59.3) 3.5 42.2(33.6-50.5) 59.9(50.9-70.7) 30.9(12-48.5) 2.2(0.6-5.3) 39.7(24.5-61) 1.3(0.1-3.2) 15.5(4.4-40.8)
Santa Cruz 44.4(38.2-48.8) 4.6 35.3(28.4-40.8) 54.3(48.2-58.7) 35.1(23.5-45) N.A. N.A. N.A. N.A.
Solano 48.7(39.3-58.8) 3.7 39(29.3-47.6) 58.8(48.4-72.1) 34(16-51) 1.8(0.4-4.1) 28.5(14-41.5) 3.6(1-8) 14(3.3-36.8)
Sonoma/Mendocino 45.7(36.5-54.8) 3.8 35.2(24.8-46.3) 58(47.5-70.5) 32.5(11.5-46.3) 1.3(0.5-2.8) 27.4(16.5-37.5) N.A. 14.5(3.1-33.5)
Stanislaus 47.4(38.2-57.8) 3.6 37.5(26.4-45.7) 58.2(48-70.7) 33.7(12-59) 1.2(0.4-3) 29.2(16.5-45.5) N.A. 7(7-7)
Sutter 50.7(41.1-58.6) 5.1 36.9(25.3-44.9) 66.6(61.6-71.3) 42.1(20-64) 1.6(0.4-4) 34.6(23.5-43.5) N.A. N.A.
Tulare/King 41(34.8-48) 5.4 32.4(25.6-41.4) 50.6(44.4-55.2) 26.3(12-40.5) 1.6(0.6-3.3) 30.3(19.5-38) N.A. N.A.
Yolo 47.6(39-55.9) 3.4 38.5(30.8-46.7) 57.5(45.5-68.4) 33.5(14-56) 1.2(0.4-2.9) 29.7(15.5-49) N.A. 16.5(3.5-41)
Total 49.2(39.7-58.4) 3.6 40.7(30.6-49.8) 58.5(48.2-70.7) 33.5(14-53.5) 1.6(0.5-3.6) 31.9(16-49) 3.7(0.5-9.5) 16.2(4-43.2)
  1. Abbreviations: CO carbon monoxide, NO 2 , nitrogen dioxide; O 3 , ozone; SO 2 , sulfur dioxide; PM 2.5 , particulate matter less than 2.5 lm in aerodynamic diameter
  2. aAir pollutant data restricted to monitors within 10 km of the cases
  3. b5 Combined counties includes: Butte, Lassen, Shasta, Tehama, Yuba