Table 2 Average absolute and per cent trends in wet deposition of sulfate.
Time period | Region | Nr. of stations | Average annual trend (STD) %/year | Absolute annual trend (STD) kgS/ha year | ||
|---|---|---|---|---|---|---|
Obs | EMEP MSC-W | Obs | EMEP MSC-W | |||
1980–1990 | Europe | 23 | −2.37 (2.33) | −0.30 (0.36) | ||
1980–1990 | India | 10 | 13.7 (25.6) | 0.00 (0.18) | ||
1980–1990 | North America | 78 | −1.80 (4.09) | −0.06 (0.18) | ||
1990–2000 | East Asia (China) | 3 | −1.27 (2.67) | 5.07 (0.36) | −0.16 (0.32) | 0.68 (0.14) |
1990–2000 | Europe | 60 | −4.02 (4.44) | −6.41 (2.17) | −0.29 (0.29) | −0.91 (0.71) |
1990–2000 | India | 10 | 22.6 (16.0) | 4.31 (1.53) | 0.42 (0.37) | 0.18 (0.14) |
1990–2000 | North America | 186 | −1.84 (2.33) | −1.93 (0.48) | −0.10 (0.13) | −0.14 (0.11) |
1990–2015 | East Asia (China) | 3 | 1.15 (0.74) | 2.84 (0.23) | 0.08 (0.05) | 0.44 (0.11) |
1990–2015 | Europe | 55 | −3.03 (0.93) | −3.74 (0.49) | −0.16 (0.12) | −0.40 (0.26) |
1990–2015 | North America | 189 | −2.17 (0.65) | −2.41 (0.26) | −0.11 (0.10) | −0.19 (0.14) |
2000–2010 | Africa (Lamto) | 1 | 4.15 | 2.69 | 0 | 0 |
2000–2010 | East Asia | 30 | 0.49 (4.14) | 0.85 (2.01) | 0.04 (0.37) | 0.07 (0.28) |
2000–2010 | Europe | 73 | −3.85 (2.83) | −4.36 (1.22) | −0.16 (0.13) | −0.26 (0.19) |
2000–2010 | India | 10 | 2.27 (8.48) | 5.64 (2.21) | −0.07 (0.37) | 0.29 (0.17) |
2000–2010 | North America | 226 | −2.30 (2.74) | −3.79 (0.68) | −0.12 (0.13) | −0.25 (0.19) |
2000–2015 | East Asia | 30 | −0.98 (2.48) | 0.16 (1.33) | −0.12 (0.24) | 0.05 (0.23) |
2000–2015 | Europe | 67 | −3.40 (1.37) | −3.94 (0.96) | −0.12 (0.10) | −0.23 (0.16) |
2000–2015 | North America | 215 | −2.78 (2.02) | −3.75 (0.65) | −0.13 (0.13) | −0.23 (0.18) |
