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Table 1 Chironomus dilutus—mean survival, weight and emergence

From: Chronic toxicity of tire and road wear particles to water- and sediment-dwelling organisms

Treatment Day 10 mean % survival (SD) Day 10 mean AFDW per organism (mg) (SD) Mean # of adults emerged: days 20–35 (SD)
Laboratory control 67 (27) 0.231 (0.032) 7.4 (2.5)
Reference sediment (unmixed) 90 (7) 0.323 (0.103) 6.6 (1.5)
Reference sediment (mixed) 63 (31) 0.254 (0.054) 6.6 (2.7)
TRWP spiked sediment 57 (11) 0.199 (0.029)* 4.8 (2.2)
  1. AFDW ash free dry weight
  2. * Statistically significant decrease relative to the unmixed reference sediment (Tukey pairwise multiple comparison test, p = 0.028)