Table 2: Correlation coefficient (r) between ozone concentrations in Japan and industrial waste gas emissions in China from 2000 to 2009.
Pref. | Number of stations | ( r ) 1-hr | ( r ) max. 1-hr |
Hokkaido | 23 | 0.80 | 0.78 |
Aomori | 6 | 0.60 | 0.48 |
Akita | 5 | 0.70 | 0.53 |
Yamagata | 10 | -0.67 | -0.80 |
Niigata | 28 | 0.98 | 0.96 |
Toyama | 25 | 0.20 | -0.19 |
Ishikawa | 22 | 0.80 | 0.58 |
Fukui | 22 | 0.89 | 0.70 |
Tottori | 3 | 0.76 | 0.51 |
Shimane | 7 | -0.35 | -0.66 |
Yamaguchi | 19 | 0.89 | 0.81 |
Fukuoka | 40 | 0.84 | 0.81 |
Saga | 9 | 0.82 | 0.82 |
Nagasaki | 18 | 0.85 | 0.84 |
Kumamoto | 20 | 0.91 | 0.91 |
Kagoshima | 9 | 0.83 | 0.76 |
Okinawa | 4 | 0.08 | -0.13 |