> The studies you cite do not list who funded them, but one of the links is ... a website which sells sneakers! One of the worst VOC offenders!

I'd ask you to consider that perhaps your sources of information, all apparently non-scientific (and many also having financial interests in "all natural" products) may not be the best counter-point to mainstream scientific research.

Here are some quotes:

Synthetic musks used in fragrances are of particular concern from an ecological perspective. Several of musk compounds are persistent in the environment and build up (bioaccumulate) in the fatty tissue of aquatic organisms.

diethyl phthalate, or DEP, is widely used in cosmetic fragrances to make the scent linger. Phthalates are choice ingredients in cosmetics because they are cheap and versatile. However, the European Commission on Endocrine Disruption has listed DEP as a Category 1 priority substance, based on evidence that it interferes with hormone function. Phthalates have been linked to early puberty in girls, reduced sperm count in men, and reproductive defects in the developing male fetus (when the mother is exposed during pregnancy).

That sounds pretty science-y to me, admittedly a layperson.