SeeGreen 5 ft. W X 7 ft. L Green Polypropylene Astroturf vs Mastiff Artificial Grass Carpet: which is safer?

Where these two actually differ

• We flag VOC off-gassing from polyurethane or latex adhesive, Polypropylene UV degradation and microplastic shedding, Backing adhesive failure and fiber separation and Infill contamination (if rubber granules used) on the AstroTurf and not on the COLOURTREE.
• We flag Flame retardants (unconfirmed), VOC off-gassing from adhesives and backing, Backing material degradation and leachables and Microplastic shedding on the COLOURTREE and not on the AstroTurf.
• The AstroTurf is Polypropylene (PP) astroturf where the COLOURTREE is polyethylene grass fibers with unspecified backing/adhesive coatings, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the AstroTurf is the one to buy.
• We are less certain about the COLOURTREE grade, at 35% confidence against 72%, because it discloses less.