The first analysis of new monitoring data reveals that British freshwaters are heavily contaminated with neonicotinoids. Half of the sites monitored in England exceed chronic pollution limits and two rivers are acutely polluted.
The recording of neonicotinoids in the Chelt doesn't seem to be damaging fish stocks where it meets the Severn, I fished it for the first time this year and would say it's teeming with dace and chub.
The Ancholne is mentioned. Anecdotally from fishing friends who have fished this river since they were youngsters have noticed a big drop in fish numbers in recent years.