Newer bio-plastics however looking at the entire life cycle properly they may be worst than regular plastics.
Also apparently best option is to burn the plastic/garbage. Attempting recycling, if one in a million items is wrong, the whole batch is ruined.
There are two broad classes of plastics: thermoset, and thermoplastic. Modern humans now have over 200 foriegn chemicals coursing through our
blood stream that previous ancestors did not. We can adsorb plastic materials by simply touching them!
2, 4, & 5 are ok
1= Polyethylene terephthalate(PETE)
Water bottles like those from Aquafina, Dasani, Plastic soda bottles, Do not reuse (bacteria), etc.
Most convenience-size beverage bottles sold in the U.S. are made from polyethylene terephthalate (PET). The FDA has determined that PET
meets standards for food-contact materials established by federal regulation for packaging. FDA classifies water beverage bottles as food, not water.
So the companies skirt the stricter FDA water requirements.
Reusing the #1 water bottles are not encouraged for a long period of time. #1 water bottles have had instances of bacteria growing in scratches that
you might not be able to see, however can become a breeding ground for bacteria.
2= HDPE or high-density polyethylene (HDPE)
Milk and water jugs. Gray Nalgene bottles, Northern Brewer jugs & fermentation buckets, water pipes, grocery bags, permeable to gas. 130°F melting
3= PVC or Vinyl or polyvinyl chloride (V)
do not use any food container made from #3
4= LDPE or Low-density polyethylene (LDPE)
bags for bread, frozen food, flexible container lids, squeezable bottles, and grocery. 120°F melting
5= Polypropylene (PP)
Yogurt, margarine, and other food containers. 2 qt. Drink bottle, Non permeable, disposable cups, plates, trays, cutlery, baby milk bottles,
beverage bottles 173°F melting THE BEST plastic
7= Polycarbonate or Lexan (Other)
Colored Nalgene bottles
The most widely encouraged plastic for drinking or eating from is #2. Nalgene bottles that are grey are typically made of the #2 plastic. However
some Nalgene bottles are made from #7 plastic - which leaks bisphenol-A (BPA) into our water and causes serious health problems. These are
typically the colored bottles.
Now per books on plastic the #7 is out BPA free, however may unleased BPS, etc even more dangerous to humans.