Halogenated organic compounds (HOCs) identified in the blubber of male bottlenose dolphin (Tursiops truncatus) of Rio de Janeiro coast, Brazil (n=4). The number of typically monitored and non- monitored HOCs and their sources. 

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... this total, 88 were identified in all samples and suggest that these common HOCs were representative of part of the T. truncatus population that frequents the Rio de Janeiro coast. The number of typically monitored and non-monitored HOCs in the blubber of bottlenose dolphin males of Rio de Janeiro coast, Brazil is presented in Table 1. The compounds were separated in 22 classes according to their chemical structure and original technical mixture (Table 1). ...

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... number of typically monitored and non-monitored HOCs in the blubber of bottlenose dolphin males of Rio de Janeiro coast, Brazil is presented in Table 1. The compounds were separated in 22 classes according to their chemical structure and original technical mixture (Table 1). The sources comprised anthropogenic (included the parent compound, their degradation or by-products and/or metabolites), naturally-occurring (synthesized mainly by bacteria, algae, organisms associated to sponges and another marine invertebrates) or mixed (anthropogenic and natural sources). ...

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... sources comprised anthropogenic (included the parent compound, their degradation or by-products and/or metabolites), naturally-occurring (synthesized mainly by bacteria, algae, organisms associated to sponges and another marine invertebrates) or mixed (anthropogenic and natural sources). In relation to HOCs typically monitored in environmental studies (n=19 , Table 1 or 11% of the total), 151 compounds are not typically monitored, corresponding to 89% of the total (Table 2). Among those classified as not typically monitored, 54 are emerging anthropogenic HOCs that have not previously been reported in the Southern Hemisphere; 21 are naturally-produced (also that have not been reported in samples from Brazil); and 37 remain unknown. ...

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... the unknowns, 12 compounds were found in dolphins from NW Atlantic and NE Pacific, 11 were found in Pacific dolphins, 7 were found in the NW Atlantic and 37 are probably unique to the SW Atlantic (Figure 1). There were several classes of anthropogenic HOCs that are not typically monitored represented in the samples analyzed (Table 1). Examples were some PBDEs congeners (n=5), DDT- related and/or possibly new metabolites (n=7), chlordane possibly related to trans-nonachlor (n=1), Mirex-related compounds that could have originated from Dechlorane technical mixtures as well as Mirex metabolites (n=8), tri-(4-chlorophenyl)methane (TCPM) and a possible metabolites (n=2), chlorinated benzenes including a possible HCB metabolite (n=2), polychlorinated terphenyls (PCTs) (n=23), polychlorinated styrenes (PCS) (n=2) and methylsulfonyl-PCBs, including possible PCB metabolites or degradation products (n=4). ...