Assessment of Polycyclic Aromatic Hydrocarbon Contamination of Breeding Pools Utilized by the Puerto Rican Crested Toad, Peltophryne lemur

Table 1

Average derived water concentration of PAH analytes by breeding site.

Analyte	Procedure and field blanks			Tamarindo South		Tamarindo North		Atolladora
	Procedural blank	Tamarindo field blank	Atallodora field blank	Range	Mean (std. dev.)	Range	Mean (std. dev.)	Range	Mean (std. dev.)
					𝑛=5		𝑛=5		𝑛=7
	ng/L	ng/L	ng/L	ng/L	ng/L	ng/L	ng/L	ng/L	ng/L
Naphthalene	0.07		0.07	0.00–0.10	0.05 (0.04)	0.06–0.15	0.11 (0.04)	0.00–0.07	0.06 (0.03)
2-Methylnaphthalene	0.01	0.02	0.03	0.02–0.05	0.03 (0.01)	0.02–0.03	0.03 (0.01)	0.02–0.03	0.02 (<0.005)
1-Methylnaphthalene	<0.005	0.01	0.01	0.01–0.03	0.02 (0.01)	0.01–0.02	0.01 (0.01)	0.02–0.02	0.02 (<0.005)
Biphenyl				0.00–0.03	0.01 (0.01)	0.00–0.03	0.02 (0.01)
2,3,5-Trimethylnaphthalene						0.04–0.06	0.04 (0.01)
C1-Naphthalenes	0.01	0.03	0.04	0.04–0.08	0.05 (0.02)	0.03–0.08	0.05 (0.02)	0.04–0.05	0.05 (0.01)
C2-Naphthalenes						0.00–0.14	0.08 (0.07)
Fluorene			0.04	0.00–0.03	0.02 (0.01)			0.00–0.03	0.01 (0.01)
C1-Dibenzothiophene				0.18–0.42	0.25 (0.10)
C2-Dibenzothiophene				0.00–2.00	0.78 (0.74)
C3-Dibenzothiophene				0.00–4.70	1.49 (1.92)
Phenanthrene		0.13	0.14	0.18–0.33	0.24 (0.05)	0.13–0.33	0.13 (0.02)	0.16–0.17	0.16 (0.01)
Anthracene				0.00–0.03	0.01 (0.02)
1-Methylphenanthrene		0.02	0.02	0.09–0.22	0.14 (0.05)	0.02–0.22	0.02 (0.02)	0.03–0.05	0.03 (0.01)
C1-Phenanthrenes/anthracenes		0.11	0.10	0.49–1.08	0.71 (0.23)	0.10–1.08	0.16 (0.09)	0.14–0.16	0.15 (0.01)
C2-Phenanthrenes/anthracenes		0.18	0.25	0.98–3.18	1.59 (0.90)	0.18–3.18	0.25 (0.14)	0.22–0.35	0.26 (0.04)
C3-Phenanthrenes/anthracenes				0.00–4.46	1.68 (1.84)
Fluoranthene				0.30–0.79	0.46 (0.20)	0.00–0.13	0.08 (0.05)	0.12–0.14	0.13 (0.01)
Pyrene				0.25–0.81	0.41 (0.23)	0.05–0.07	0.06 (0.01)	0.07–0.08	0.07 (<0.005)
C1-Fluoranthenes/pyrenes				0.30–1.07	0.5 (0.32)			0.00–0.05	0.01 (0.02)
Retene				0.10–0.28	0.15 (0.08)	0.09–0.14	0.11 (0.02)	0.05–0.10	0.07 (0.02)
Benz[a]anthracene				0.07–0.16	0.09 (0.04)
Chrysene				0.55–1.85	0.86 (0.56)
C1-Chrysenes				0.51–1.93	0.85 (0.61)
C2-Chrysenes				0.54–1.87	0.86 (0.57)
C3-Chrysenes				0.00–1.12	0.22 (0.50)
Benzo[e]pyrene				0.00–0.93	0.30 (0.38)

2,5-dimethylnaphthalene, acenaphthylene, acenaphthene, dibenzofuran, C2-C4-naphthalenes, 1-methylfluorene, C1-3-fluorenes, dibenzothiophene, C4-phenanthrenes/anthracenes, C4-chrysenes, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, perylene, indeno[1,2,3-cd]pyrene, dibenz[a,h]anthracene, benzo[g,h,i]perylene, and coronene were measured below detectable limits for all sites.