Table 1. Numbers of Substances Found with the “ANST/POL” and “BIOL/Occur” Searches along with Total Reports, Total Counts, and Percentage of the Total Represented by the Top 100 to 500.
| ANST/POL
search |
BIOL/Occur
search |
|||||
|---|---|---|---|---|---|---|
| Search/with number of CASRNs used | Total CASRN citationsa | Total CASRN countsb | % of total | Total CASRN citationsa | Total CASRN countsb | % of total |
| Initial list of CASRNs (23,458) | 105,410 | 468,383 | 479,636 | 21,828,774 | ||
| Final CASRNs (19,776) | 89,959 | 413,007 | 359,641 | 9,251,975 | ||
| Top 10 | 36,128 | 8.8% | 950,454 | 10% | ||
| top 100 | 140,527 | 34% | 3,303,278 | 36% | ||
| top 200 | 190,759 | 47% | 4,469,288 | 48% | ||
| top 300 | 222,788 | 54% | 5,214,655 | 56% | ||
| top 500 | 262,875 | 64% | 6,166,490 | 67% | ||
| Lead | 6,224 | 1.5% | 73,043 | 0.79% | ||
| Cadmium | 4,692 | 1.1% | 82,544 | 0.89% | ||
| p,p′-DDT | 1,571 | 0.38% | 15,534 | 0.17% | ||
| 2,3,7,8-TCDD | 743 | 0.18% | 10,066 | 0.11% | ||
a
Total citation counts of CASRNs for all years of the search window (Jan 1978–Apr 2018 for ANST/POL and Jan 1966–Dec 2021 for BIOL/Occur). Note that the BIOL/Occur search used the ANST/POL CASRN list (Table S4).
b
Total citation counts for each CASRN over the search window (1978–2018 for ANST/POL and 1966–2021 for BIOL/Occur).