By the numbers

California began strict product testing for legal marijuana on July 1, and through Aug. 29 there were 10,695 samples tested and 1,904 failed, according to the state Bureau of Cannabis Control. Here are the findings:

Reasons for failure (some samples failed for multiple reasons)

Inaccurate claims on package label: 1,279 failures

Pesticides: 403

Microbial impurities (mold, E. coli, salmonella): 114

Residual Solvents, processing chemicals: 99

Moisture (in cannabis buds): 36 Homogeneity (even distribution of THC): 25

Foreign material (insect fragments, hair): 6

Failed batches by category

Cannabis buds: 5,355 batches tested, 567 failures (10.6 percent)

Inhalable oils, waxes: 3,361 batches tested, 686 failures (20.4 percent)

Edibles, tinctures, lotions: 1,979 batches tested, 651 failures (32.9 percent)