共 50 条
- [33] U.S. EPA to focus more on constituency needs, concerns Water Environment and Technology, 2002, 14 (09): : 51 - 53
- [35] Status of Aquatic Bioassessment in U.S. EPA Region IX Environmental Monitoring and Assessment, 2000, 64 : 17 - 30
- [36] U.S. EPA underestimated TMDL costs, groups contend 2002, Water Environment Federation (14): : 14 - 16
- [37] U.S. EPA lowers reporting thresholds for PBT Chemicals Water Environment and Technology, 2000, 12 (02):
- [40] Clinton proposal would maintain U.S. EPA budget Water Environment and Technology, 2000, 12 (04):