The "ND" readings for a few samples are so rare and inconsistent that I do not count on them. When I filter by Endangered Species / 65-95% Cacao and sort by product, I see three entries for Natural Dark 72 and two for ND 88 (my personal staple):
2016: 0.022 ppm, 0.9 ug/serv lead; 0.044 ppm, 1.9 ug/serv cadmium
2014: ND lead, ND cadmium
2014: 0.021 ppm, 0.9 ug/serv lead; 0.035 ppm, 1.5 ug/serv cadmium
2016: 0.038 ppm, 1.6 ug/serv lead; 0.156 ppm, 6.7 ug/serv cadmium
2014: 0.079 ppm, 3.4 ug/serv lead; 0.049 ppm, 2.1 ug/serv cadmium
When I filter by Trader Joe's, I see five entries for 85 Cacao Tumaco:
2016: ND lead, --- cadmium
2016: 0.053 ppm, 2.1 ug/serv lead; 0.650 ppm, 26.0 ug/serv cadmium
2014: 0.023 ppm, 0.9 ug/serv lead; 0.650 ppm, 26.0 ug/serv cadmium
2014: 0.030 ppm, 1.2 ug/serv lead; 21.2 ug/serv cadmium
2014: 0.032 ppm, 1.3 ug/serv lead; 19.6 ug/serv cadmium
(The "---" means the sample wasn't tested.)
Since 99%+ of the samples have detectable levels of lead and cadmium, I expect to ingest some of each with every bite. I think in terms of safety standards and exposure. When I compare the measurements above with the public health guidelines
listed by As You Sow, I expect an ounce per day of one of these three products to expose me to 2-7 times the California Maximum Allowable Daily Exposure (MADL) of lead and 0.5-6 times the MADL of cadmium.
Since the "MADL is a level at which a chemical would have no observable effect, even if an individual were exposed to 1,000 times that level", I'm not worried about my daily ounce of Endangered Species 88.