Pet flea treatments poisoning rivers across England, scientists find17-11-2020, 10:56Permalink
Discovery is ‘extremely concerning’ for water insects, and fish and birds that depend on them
This is a headline in todays Guardian Newspaper
For more about this increasing problem read my website as well
There are newer 'chewable" alternative flea/tick treatments but there is increasing evidence of neurological problems with these which you can read about above.
There are alternatives but they do take a little more effort from you the pet parent than can be affective and are so much better for the environment and your purse.
My website will have more details soon or you can contact me