Table 6 Estimated slope coefficients for different pollutants by year.

From: China industrial environmental database 1998–2015

 

Data type

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

COD

Discharge

1.5060 (0.1498)

1.2950 (0.0468)

1.2685 (0.0534)

1.1194 (0.0122)

1.1084 (0.0138)

1.1311 (0.0201)

1.1172 (0.0212)

1.1161 (0.0176)

1.1307 (0.0236)

1.0989 (0.0162)

1.0991 (0.0167)

1.1202 (0.0217)

1.1472 (0.0292)

1.0876 (0.0113)

1.0952 (0.0140)

1.0984 (0.0159)

1.1087 (0.0180)

1.1123 (0.0219)

Removal

1.2875 (0.1801)

1.0478 (0.0148)

1.0137 (0.0035)

1.0043 (0.0017)

1.0010 (0.0022)

1.0016 (0.0014)

1.0004 (0.0002)

1.0010 (0.0002)

0.9987 (0.0024)

0.9974 (0.0006)

0.9983 (0.0004)

0.9971 (0.0006)

0.9967 (0.0007)

1.0000 (0.0000)

1.0371 (0.0097)

1.0372 (0.0091)

1.0378 (0.0094)

1.0509 (0.0160)

SO2

Discharge

1.4534 (0.0705)

1.2692 (0.0267)

1.2395 (0.0211)

1.0985 (0.0067)

1.1045 (0.0056)

1.1929 (0.0123)

1.0889 (0.0044)

1.0712 (0.0031)

1.0943 (0.0039)

1.0663 (0.0024)

1.0692 (0.0027)

1.0855 (0.0038)

1.0746 (0.0037)

1.0590 (0.0039)

1.0657 (0.0045)

1.0777 (0.0058)

1.0900 (0.0075)

1.0982 (0.0088)

Removal

1.2443 (0.0846)

1.1366 (0.0330)

1.0100 (0.0012)

0.9209 (0.0111)

0.9882 (0.0020)

0.9079 (0.0117)

0.9143 (0.0108)

0.9607 (0.0057)

1.0162 (0.0009)

0.9979 (0.0004)

0.9982 (0.0005)

0.9982 (0.0004)

0.9972 (0.0005)

1.0000 (0.0000)

1.0183 (0.0007)

1.0320 (0.0017)

1.0356 (0.0023)

1.0211 (0.0015)

NH3-N

Discharge

   

1.1207 (0.0137)

1.1130 (0.0126)

1.0787 (0.0083)

1.0841 (0.0111)

1.1057 (0.0121)

1.1213 (0.0169)

1.0861 (0.0108)

1.0792 (0.0102)

1.0847 (0.0116)

1.1048 (0.0149)

1.0642 (0.0075)

1.0815 (0.0098)

1.0842 (0.0091)

1.0874 (0.0098)

1.0903 (0.0112)

Removal

   

0.9996 (0.0022)

1.0025 (0.0004)

1.0022 (0.0003)

0.9999 (0.0001)

1.0024 (0.0005)

1.0221 (0.0048)

1.0056 (0.0018)

1.0069 (0.0019)

0.9994 (0.0001)

0.9995 (0.0001)

1.0000 (0.0000)

1.0654 (0.0056)

1.0452 (0.0035)

1.0423 (0.0036)

1.1348 (0.0134)

NOX

Discharge

        

1.0837 (0.0042)

1.0371 (0.0037)

1.0742 (0.0034)

1.0631 (0.0028)

1.0572 (0.0021)

1.0405 (0.0014)

1.0441 (0.0016)

1.0529 (0.0021)

1.0637 (0.0031)

1.0803 (0.0046)

Removal

        

1.0116 (0.0020)

0.9989 (0.0005)

0.9992 (0.0002)

0.9794 (0.0102)

1.0000 (0.0000)

0.9964 (0.0003)

1.0446 (0.0040)

1.0270 (0.0010)

1.0304 (0.0007)

1.0481 (0.0017)

  1. Standard deviations are provided in the parenthesis.
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