I don't think that anyone has ever suggested there are more microplastic particles in bottled water than in tap water. And at present there is no evidence that microplastic particles are harmful.
The point I was making is about phenols which are in the plastic that the bottle is made of. They leach out of new plastic into the water in the bottle (particularly in warm storage environments), and are known to be endocrine disrupters. If you are past the age of having children this is probably less of a concern than for people (particularly women) who may have a baby in the future. But it is still not good for you at all.
The reason I say you should tip the bottled water away, rinse and refill the bottle with tap water is that tap water won't have been contaminated by phenols from newly-made plastic.
My experience is that whenever someone asks that question, they will reject any link you give. All I could do to find such a link would be to Google for it. Better that you do the same.
France is not a third world country ...
The water is of course absolutely fine. I would suggest care with taps at the Aires. Perhaps a quick wipe with an antiseptic/antibacterial wipe is recommended in case it is not entirely clean.
Much as you would do in the UK in fact.
Bottled water is cheap. But plastic bottles are an issue for the environment, and allegedly plastic by-products can leach into the water.
Do all the French people buy bottled
water