Table 3 Distribution for annual average air pollution concentration before symptom date.

From: Long-term air pollution exposure is associated with higher incidence of ST-elevation myocardial infarction and in-hospital cardiogenic shock

 

SO2 (ppm)

CO (ppm)

O3 (ppm)

NO2 (ppm)

PM10 (µg/m3)

Min

0.0014

0.2028

0.0037

0.0070

18.25

Q1

0.0041

0.5312

0.0176

0.0218

44.65

Median

0.0049

0.6088

0.0211

0.0259

50.53

Q3

0.0061

0.7211

0.0244

0.0342

58.67

Max

0.0136

1.4976

0.0437

0.0812

99.14

IQR

0.0020

0.1899

0.0068

0.0124

14.02

Mean

0.0053

0.6276

0.0210

0.0284

52.57

  1. CO = carbon monoxide, IQR = interquartile range, NO2 = nitrogen dioxide, O3 = ozone, PM10 = particulate matter 10 µm or less in diameter, ppm = part per million, Q1 = 1st quintile, Q3 = 3rd quintile, SO2 = sulfur dioxide.
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