Aquatic Organisms Database and Human Health Database - ToMEx 2.0 Threshold Data

Sep 2, 2026

ToMEx 2.0 compiles expanded evidence for aquatic organisms and human health databases, reporting totals of studies, data points, exposure types, and represented species. Aquatic coverage increases from ToMEx 1.0 (162 studies) to ToMEx 2.0 (286 studies), with higher counts for particle-only and for acute and chronic data. Human health materials rise from 55 publications to 78, with detailed in vivo and in vitro point totals. The thresholds section compares investigative monitoring, discharge monitoring, management planning, and source control in both particles/L and mg/L using 95% confidence intervals, highlighting how required concentration levels differ between versions.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Aquatic Organisms Database

Study and data point counts (ToMEx 1.0 vs ToMEx 2.0)

Species coverage (freshwater vs marine)

Human Health Database

Publication and data point counts (ToMEx 1.0 vs ToMEx 2.0)

Thresholds

particles/L (95% CI): investigative monitoring to source control

mg/L (95% CI): investigative monitoring to source control

| Aquatic Organisms Database | | | | --- | --- | --- | | | ToMEx 1.0 | ToMEx 2.0 | | Total Number of Studies | 162 | 286 | | Particle only | 155 | 274 | | Chemical co-exposure | 12 | 34 | | Chemical transfer | 8 | 19 | | Leachate | 10 | 13 | | Total Number of Data Points | 5,871 | 12,798 | | Acute data | 3,462 | 7,698 | | Chronic data | 2,409 | 5,100 | | In vivo data | 5,829 | 12,462 | | In vitro data | 42 | 336 | | ≥ 3 test concentrations | 3,086 | 5,744 | | Total Number of Species Represented | 109 | 164 | | Freshwater species | 40 | 63 | | Marine species | 69 | 101 | | Human Health Database | | | | --- | --- | --- | | | ToMEx 1.0 | ToMEx 2.0 | | Total Number of Publications | 55 | 78 | | Particle only | 54 | 71 | | Chemical co-exposure | 7 | 7 | | Chemical transfer | 0 | 0 | | Leachate | 0 | 0 | | Total Number of Data Points | 3,904 | 7,499 | | In vivo data | 2,512 | 4,579 | | In vitro data | 1,392 | 2,920 | | ≥ 3 Test Concentrations | 2,052 | 4,189 | | Total Number of Species Represented | 6 | 7 | | Threshold | particles/L (95% CI) | | mg/L (95% CI) | | | --- | --- | --- | --- | --- | | | ToMEx 1.0 | ToMEx 2.0 | ToMEx 1.0 | ToMEx 2.0 | | \#1 Investigative Monitoring | 0.2 a | 5 × 10–5 a | 0.04 a | 8 × 10–6 a | | \#2 Discharge Monitoring | 2 (0 . 2–123) | 3 × 10–3 (5 × 10–5−1) | 0.4 (0.04–20) | 4 × 10–4 (8 × 10–6−0 . 2) | | \#3 Management Planning | 3 (0 . 3–261) | 0.3 (0 . 03–7) | 0.6 (0 . 05–43) | 0.05 (5 × 10–3−1) | | \#4 Source Control | 23 (2–1,150) | 1 (0 . 2–44) | 4 (0.3–188) | 0.2 (0 . 04–7) | | Threshold | particles/L (95% CI) | | mg/L (95% CI) | | | --- | --- | --- | --- | --- | | | ToMEx 1.0 | ToMEx 2.0 | ToMEx 1.0 | ToMEx 2.0 | | \#1 Investigative Monitoring | 0.2a | 0.4 a | 0.04 a | 0.01a | | \#2 Discharge Monitoring | 2 (0 . 2–123) | 5 (0 .4–147) | 0.4 (0.04-20) | 0.2 (0 . 01–5) | | \#3 Management Planning | 3 (0 . 3–261) | 42 (28–2,420) | 0.6 (0 . 05-43) | 1 (1–85) | | \#4 Source Control | 23 (2-1,150) | 144 (63–6,990) | 4 (0 .3-188) | 5 (2–244) |

FAQs

What does ToMEx 2.0 report for the Aquatic Organisms Database?

It reports totals of studies and data points, splits by exposure type (particle only, chemical co-exposure, chemical transfer, leachate), and separates acute vs chronic and in vivo vs in vitro data. It also lists the number of represented freshwater and marine species.

How does the Human Health Database coverage change from ToMEx 1.0 to ToMEx 2.0?

Total publications increase from 55 to 78, and total data points rise from 3,904 to 7,499. The dataset also expands both in vivo (2,512 to 4,579) and in vitro (1,392 to 2,920) points, along with higher test concentration counts.

How are thresholds defined and compared in ToMEx 2.0?

Thresholds are provided for four categories: investigative monitoring, discharge monitoring, management planning, and source control. Values are given in both particles/L and mg/L, each with 95% confidence intervals, comparing ToMEx 1.0 versus ToMEx 2.0.

Sep 2, 2026

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