River life improving, new survey finds
A new system for assessing the biological quality of rivers has shown improvements in almost 26% of river lengths in England and Wales between 1990 and 1995. The system provides a valuable new window on water quality and will help to pinpoint areas where rivers are adversely affected by toxic discharges.
Sorry you do not have access to this article. Please contact Customer Support at
or call 020 8267 8120