The impact of urbanization on tropical mangroves (Fortaleza, Brazil): Evidence from PAH distribution in sediments

Cavalcante, Rivelino M.; Sousa, Francisco W.; Nascimento, Ronaldo F.; Silveira, Edilberto R.; Freire, George Satander Sá

doi:10.1016/j.jenvman.2009.08.020

Cited by 106 publications

(36 citation statements)

References 39 publications

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“…These concentrations were however, substantially lower than mangroves situated near large urban centers such as Hong Kong (Tam et al, 2001) or Sao Paulo, Brazil (Cavalcante et al, 2009;Medeiros and Bícego, 2004) indicating the importance of human activities in proliferation and accumulation of these toxic compounds. Because most PAHs are very toxic and carcinogenic, we evaluated the ΣPAH concentrations for effect range low (ERL; 4 ng/mg) and effect range medium (ERM; 44 ng/mg) proposed by Long et al (1995).…”

mentioning

confidence: 89%

“…PAHs enter the aquatic environment via industrial discharge, petroleum spills, combustion of fossil fuels, and various non-point source inputs such as agriculture, urban runoff, and atmospheric deposition (Yunker and Mcdonald, 2003;Ke et al, 2005;Cavalcante et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

“…Their stable molecular structure results in enhanced preservation and as a consequence, PAH analysis is a useful tool for paleoenvironmental reconstruction of anthropogenic processes in different environments such as lakes, rivers, estuaries, and marine sediments (Benlahcen et al, 1997;Yunker and Mcdonald, 2003;Christensen and Bzdusek, 2005;Cavalcante et al, 2009;Qiu et al, 2009;Choudhary and Routh, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is not surprising that elevated concentrations of PAHs have been recorded in many estuarine and mangrove sites worldwide (Ke et al, 2005;Liu et al, 2009;Cavalcante et al, 2009). In this study, we investigated the 'fingerprints' of different PAHs in dated sediment cores from the Pichavaram mangrove-estuarine complex ( Fig.…”

Section: Introductionmentioning

confidence: 99%

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Polycyclic aromatic hydrocarbon fingerprints in the Pichavaram mangrove–estuarine sediments, southeastern India

Ranjan

Routh

Ramanathan

et al. 2012

Organic Geochemistry

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The sources and historical deposition of 16 polycyclic aromatic hydrocarbons (PAHs) were investigated in dated sediment cores from the Pichavaram mangrove-estuarine complex. The ΣPAH flux in mangrove and estuarine sediments are 0.064 ± 0.031 μg/cm 2 /yr and 0.043 ± 0.020 μg/cm 2 /yr, respectively. The PAH flux in sediments increases up-core coinciding with rapid urbanization since the 1970s. The flux shows a decrease in recent years (since 1990) coinciding with less riverine discharge, and perhaps more effective implementation of environmental regulations. The sediments are dominated by low molecular weight PAHs suggesting anthropogenic input. Ratios of specific PAH isomer pairs suggest higher input of petrogenic over pyrogenic derived PAHs. Notably, the deposition of high molecular weight PAHs increase in mangrove surface sediments was due to lignite and firewood combustion. Because of their overall low concentrations in sediments it is unlikely these PAHs pose an immediate ecological hazard.

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mentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Polycyclic aromatic hydrocarbon fingerprints in the Pichavaram mangrove–estuarine sediments, southeastern India

Ranjan

Routh

Ramanathan

et al. 2012

Organic Geochemistry

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“…Provide high productivity, abundant detritus and high levels of organic carbon (Cavalcante et al 2009). Mangrove species diversity is believed to be highest in the Indo-West Pacific Very limited information on species diversity and relevance to SEAM, or marine systems in general, predominately freshwater organisms (Fontaneto et al 2006).…”

Section: Available Unknownmentioning

confidence: 99%

A review of nickel toxicity to marine and estuarine tropical biota with particular reference to the South East Asian and Melanesian region

Gissi

Stauber

Binet

et al. 2016

Environmental Pollution

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. (2016). A review of nickel toxicity to marine and estuarine tropical biota with particular reference to the South East Asian and Melanesian region. Environmental Pollution, 218 1308Pollution, 218 -1323 A review of nickel toxicity to marine and estuarine tropical biota with particular reference to the South East Asian and Melanesian region AbstractThe South East Asian Melanesian (SEAM) region contains the world's largest deposits of nickel lateritic ores. Environmental impacts may occur if mining operations are not adequately managed. Effects data for tropical ecosystems are required to assess risks of contaminant exposure and to derive water quality guidelines (WQG) to manage these risks. Currently, risk assessment tools and WQGs for the tropics are limited due to the sparse research on how contaminants impact tropical biota. As part of a larger project to develop appropriate risk assessment tools to ensure sustainable nickel production in SEAM, nickel effects data were required. The aim of this review was to compile data on the effects of nickel on tropical marine, estuarine, pelagic and benthic species, with a particular focus on SEAM. There were limited high quality chronic nickel toxicity data for tropical marine species, and even fewer for those relevant to SEAM. Of the data available, the most sensitive SEAM species to nickel were a sea urchin, copepod and anemone. There is a significant lack of high quality chronic data for several ecologically important taxonomic groups including cnidarians, molluscs, crustaceans, echinoderms, macroalgae and fish. No high quality chronic nickel toxicity data were available for estuarine waters or marine and estuarine sediments. The very sparse toxicity data for tropical species limits our ability to conduct robust ecological risk assessment and may require additional data generation or readacross from similar species in other databases (e.g. temperate) to fill data gaps. Recommendations on testing priorities to fill these data gaps are presented. Capsule abstractNickel toxicity data is lacking for tropical marine biota; data is required for key taxa including cnidarians, molluscs, crustaceans, echinoderms, macroalgae and fish. HighlightsSouth East Asia and Melanesia contains the largest deposits of nickel lateritic ores Environmental impacts may occur if mining operations are not adequately managed Risk assessment tools for nickel in the tropics are limited due to lack of data We compiled nickel data for aquatic tropical ecosystems and identified key gaps Nickel data is required for corals, molluscs, crustaceans, echinoderms, macroalgae, fish KeywordsMining, tropical ecotoxicology, ecological risk assessment, bioassay, species sensitivity distribution. 2 AbstractThe South East Asian Melanesian (SEAM) region contains the world's largest deposits of nickel lateritic ores. Environmental impacts may occur if mining operations are not adequately managed. Effects data for tropical ecosystems are required to assess risks of contaminant exposure and to derive water quality ...

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Macro- and Meiofaunal Communities in Brazilian Mangroves and Salt Marshes

Checon

Corte

Cunha

et al. 2023

Brazilian Marine Biodiversity

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The impact of urbanization on tropical mangroves (Fortaleza, Brazil): Evidence from PAH distribution in sediments

Cited by 106 publications

References 39 publications

Polycyclic aromatic hydrocarbon fingerprints in the Pichavaram mangrove–estuarine sediments, southeastern India

Polycyclic aromatic hydrocarbon fingerprints in the Pichavaram mangrove–estuarine sediments, southeastern India

A review of nickel toxicity to marine and estuarine tropical biota with particular reference to the South East Asian and Melanesian region

Macro- and Meiofaunal Communities in Brazilian Mangroves and Salt Marshes

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