| Parameter | Type | Period | Filename | Data | Plot |
| O3 | hourly | 1971-01-01 - 1971-12-31 | lis638n00.impt.as.cn.o3.nl.hr1971.dat | zip | pdf |
| O3 | hourly | 1972-01-01 - 1972-12-31 | lis638n00.impt.as.cn.o3.nl.hr1972.dat | zip | pdf |
| O3 | hourly | 1973-01-01 - 1973-12-31 | lis638n00.impt.as.cn.o3.nl.hr1973.dat | zip | pdf |
| O3 | hourly | 1974-01-01 - 1974-12-31 | lis638n00.impt.as.cn.o3.nl.hr1974.dat | zip | pdf |
| O3 | hourly | 1975-01-01 - 1975-12-31 | lis638n00.impt.as.cn.o3.nl.hr1975.dat | zip | pdf |
| O3 | hourly | 1976-01-01 - 1976-12-31 | lis638n00.impt.as.cn.o3.nl.hr1976.dat | zip | pdf |
| O3 | hourly | 1977-01-01 - 1977-12-31 | lis638n00.impt.as.cn.o3.nl.hr1977.dat | zip | pdf |
| O3 | hourly | 1978-01-01 - 1978-12-31 | lis638n00.impt.as.cn.o3.nl.hr1978.dat | zip | pdf |
| O3 | hourly | 1979-01-01 - 1979-12-31 | lis638n00.impt.as.cn.o3.nl.hr1979.dat | zip | pdf |
| O3 | hourly | 1980-01-01 - 1980-12-31 | lis638n00.impt.as.cn.o3.nl.hr1980.dat | zip | pdf |
| O3 | hourly | 1981-01-01 - 1981-12-31 | lis638n00.impt.as.cn.o3.nl.hr1981.dat | zip | pdf |
| O3 | hourly | 1982-01-01 - 1982-12-31 | lis638n00.impt.as.cn.o3.nl.hr1982.dat | zip | pdf |
| O3 | hourly | 1983-01-01 - 1983-12-31 | lis638n00.impt.as.cn.o3.nl.hr1983.dat | zip | pdf |
| O3 | hourly | 1984-01-01 - 1984-12-31 | lis638n00.impt.as.cn.o3.nl.hr1984.dat | zip | pdf |
| O3 | hourly | 1985-01-01 - 1985-12-31 | lis638n00.impt.as.cn.o3.nl.hr1985.dat | zip | pdf |
| O3 | hourly | 1986-01-01 - 1986-12-31 | lis638n00.impt.as.cn.o3.nl.hr1986.dat | zip | pdf |
| O3 | hourly | 1987-01-01 - 1987-12-31 | lis638n00.impt.as.cn.o3.nl.hr1987.dat | zip | pdf |
| O3 | hourly | 1988-01-01 - 1988-12-31 | lis638n00.impt.as.cn.o3.nl.hr1988.dat | zip | pdf |
| O3 | hourly | 1989-01-01 - 1989-12-31 | lis638n00.impt.as.cn.o3.nl.hr1989.dat | zip | pdf |
| O3 | hourly | 1990-01-01 - 1990-12-31 | lis638n00.impt.as.cn.o3.nl.hr1990.dat | zip | pdf |
| O3 | hourly | 1991-01-01 - 1991-12-31 | lis638n00.impt.as.cn.o3.nl.hr1991.dat | zip | pdf |
| O3 | hourly | 1992-01-01 - 1992-12-31 | lis638n00.impt.as.cn.o3.nl.hr1992.dat | zip | pdf |
| O3 | hourly | 1993-01-01 - 1993-12-31 | lis638n00.impt.as.cn.o3.nl.hr1993.dat | zip | pdf |
| O3 | hourly | 1994-01-01 - 1994-12-31 | lis638n00.impt.as.cn.o3.nl.hr1994.dat | zip | pdf |
| O3 | hourly | 1999-01-01 - 1999-12-31 | lis638n00.impt.as.cn.o3.nl.hr1999.dat | zip | pdf |
| O3 | hourly | 2000-01-01 - 2000-12-31 | lis638n00.impt.as.cn.o3.nl.hr2000.dat | zip | pdf |
| O3 | hourly | 2001-01-01 - 2001-12-31 | lis638n00.impt.as.cn.o3.nl.hr2001.dat | zip | pdf |
| O3 | hourly | 2002-01-01 - 2002-12-31 | lis638n00.impt.as.cn.o3.nl.hr2002.dat | zip | pdf |
| O3 | daily | 1971-01-01 - 2002-12-31 | lis638n00.impt.as.cn.o3.nl.da.dat | zip | pdf |
| O3 | monthly | 1971-01-01 - 2002-12-01 | lis638n00.impt.as.cn.o3.nl.mo.dat | zip | pdf |
