Toxicity assessment of atmospheric particulate matter in the Mediterranean and Black Seas open waters

Mesquita, Sofia Raquel; Dachs, Jordi; Drooge, Barend L. van; Castro-Jiménez, Javier; Navarro‐Martín, Laia; Barata, Carlos; Vieira, Maria Natividade; Guimarães, Laura; Piña, Benjamı́n

doi:10.1016/j.scitotenv.2015.12.055

Cited by 28 publications

(23 citation statements)

References 47 publications

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“…OPE atmospheric levels in remote areas, supposedly far from sources seem to be in many occasions within the range of levels measured in coastal areas close to suspected sources, suggesting complex atmospheric circulation patterns and different environmental processing and dynamics linked to geographic regions (Castro-Jiménez et al, 2016;Li et al, 2018). It is, therefore, crucial to better investigate the airborne occurrence and loadings of OPEs to marine/coastal environments in close relation to their potential impacts.…”

Section: Introductionmentioning

confidence: 95%

“…There is no doubt today about the multi-media global scale occurrence of organophosphate esters (OPEs) flame retardants and plasticizers in the marine environment. OPE have been found in air, water, sediment and aquatic organisms from different marine areas of the world (Zhong et al, 2017;Wei et al, 2015;Brandsma et al, 2015;Castro-Jiménez et al, 2014;Van der Veen andde Boer, 2012, Bollmann et al, 2012;Möller et al, 2011;Kim et al, 2011), including remote environments such as the Arctic (Ma et al, 2017; ., 2016a; Hallanger et al, 2015;Salamova et al, 2014a, Möller et al, 2012 and the most pristine areas from the tropical and subtropical Atlantic, Pacific and Indian oceans (Castro-Jiménez et al, 2016). In addition, most recent reports point to their environmental persistency, bioaccumulation and adverse effects in aquatic organisms and humans (ECHA 2008;2009; Van der Veen and de Boer, 2012; Wei et al, 2015;Wang et al, 2015a,b).…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric particle-bound organophosphate ester flame retardants and plasticizers in a North African Mediterranean coastal city (Bizerte, Tunisia)

Castro-Jiménez

Sempéré

2018

Science of The Total Environment

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Organophosphate ester (OPE) flame retardants and plasticizers have been detected at generally high frequencies (70-98%) for the first time in the atmosphere over the NW African coastal Mediterranean. Results from sixty air samples (total suspended particles, TSP) collected between March 2015 and January 2016 in an urban coastal site (Bizerte, Tunisia) revealed ∑OPE concentrations of ~100-1060 pg m (470 pg m, median) with TCPPs, EHDPP and TiBP exhibiting the higher median concentrations (~110, 100 and 85 pg m, respectively). Spring generally exhibited the lowest concentrations, probably linked to the influence of local meteorological conditions and air mass trajectories to a lesser extent. Non-chlorinated OPEs generally predominated, in contrast to the most common reported situation in marine environments (i.e. higher abundance of chlorinated OPEs) pointing to the relevance of local OPE sources in the study area. TiBP levels were generally higher than those reported for other marine/coastal environments suggesting this OPE as a good tracer of local sources in Bizerte. Contrarily, the atmospheric levels of other abundant OPEs in the area (e.g. TCPP) seem to be in the range and/or lower than those reported for remote marine environments. These findings point to the interplay of different factors with solar irradiance (potentially enhancing atmospheric photochemical oxidation reactions) and meteorological conditions in the study area likely compensating potential local sources of some OPEs. Not all OPEs presented the same seasonality in terms of atmospheric concentrations and pattern. The estimated atmospheric dry deposition fluxes (∑OPEs) were 18-180 ng m d. Up to ~9 kg y of OPEs (~1 kg y of new organic anthropogenic phosphorus coming from OPEs) can be loaded to the shallow and enclosed Bizerte lagoon (~130 km), considered as the most important aquaculture area in Tunisia, with yet unknown implications for the environmental exposure and impacts in the ecosystem functioning.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Atmospheric particle-bound organophosphate ester flame retardants and plasticizers in a North African Mediterranean coastal city (Bizerte, Tunisia)

Castro-Jiménez

Sempéré

2018

Science of The Total Environment

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“…2 High molecular weight (HMW) polycyclic aromatic hydrocarbons (PAHs) and generally persistent organic pollutants (POPs) such as polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) are among the contaminants suspected to produce these hazardous effects. 2 In addition, POPs associated to the atmospheric particle phase can be more resistant to atmospheric degradation processes (e.g. photodegradation) increasing therefore their atmospheric residence times, subsequent long-range atmospheric transport (LRAT) and potential expossure.…”

Section: Introductionmentioning

confidence: 99%

Occurrence, Loading, and Exposure of Atmospheric Particle-Bound POPs at the African and European Edges of the Western Mediterranean Sea

Castro-Jiménez

Barhoumi

Paluselli

et al. 2017

Environ. Sci. Technol.

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A comparative study for 62 toxic chemicals based on the monthly collection of aerosol samples during 2015-2016 in two coastal cities at both the African (Bizerte, Tunisia) and European (Marseille, France) edges of the W Mediterranean basin is presented. Legacy polychlorinated biphenyls (Σ 18 PCBs) and polychlorinated dibenzo-p-dioxins and dibenzofurans (Σ 17 PCDD/Fs) show generally higher median levels at the African edge (2.1 and 0.2 pg m-3 , respectively) compared to the European coastal site (1.0 and 0.08 pg m-3 , respectively). Contrary, the "emerging" polybrominated diphenyl ethers (Σ 27 PBDEs) median concentrations were higher in Marseille (~ 9.0 pg m-3) compared to Bizerte (~ 6.0 pg m-3). Different past usage and current emission patterns were found at both edges of the W Mediterranean, most probably linked to the respective different regulatory frameworks for toxic chemicals. Our results indicate that the total organic carbon (TOC) and/or the elemental carbon (EC) contents in the atmospheric aerosol may have a stronger effect than the total suspended particle (TSP) content as a whole on the spatial-temporal variability and the long-range atmospheric transport potential of the studied POPs. A "jumping" of the PBDE local atmospheric stocks from the NW European Mediterranean edge to the NW African coast seems to be possible under favorable conditions at present. While a higher PBDE median loading is estimated for Marseille area (~ 550 ng m-2 y-1) compared to Bizerte (~400 ng m-2 y-1), the median PCB and PCDD/F dry deposition fluxes were higher at the African site, resulting in a 3fold higher toxic equivalent (TEQ) loading of dioxin-like pollutants (400 pg TEQ m-2 y-1) compared to Marseille (~140 pg TEQ m-2 y-1) with potential implications for the aquatic organisms. However, the inhalation exposure assessment points to a minimum risk for human health at both sites.

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“…Zebrafish is an organism that is increasingly used as a vertebrate model in toxicology, developmental biology and drug discovery . Zebrafish is easy to breed, has small size and a high permeability to small external molecules, which are suitable properties for environmental omics studies . CPO is an acetylcholinesterase inhibitor leading to neuronal and muscle toxicity on living organisms.…”

Section: Introductionmentioning

confidence: 99%

Combining hyperspectral imaging and chemometrics to assess and interpret the effects of environmental stressors on zebrafish eye images at tissue level

Olmos

Marro

Loza-Álvarez

et al. 2017

Journal of Biophotonics

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Changes on an organism by the exposure to environmental stressors may be characterized by hyperspectral images (HSI), which preserve the morphology of biological samples, and suitable chemometric tools. The approach proposed allows assessing and interpreting the effect of contaminant exposure on heterogeneous biological samples monitored by HSI at specific tissue levels. In this work, the model example used consists of the study of the effect of the exposure of chlorpyrifos-oxon on zebrafish tissues. To assess this effect, unmixing of the biological sample images followed by tissue-specific classification models based on the unmixed spectral signatures is proposed. Unmixing and classification are performed by multivariate curve resolution-alternating least squares (MCR-ALS) and partial least squares-discriminant analysis (PLS-DA), respectively. Crucial aspects of the approach are: (1) the simultaneous MCR-ALS analysis of all images from 1 population to take into account biological variability and provide reliable tissue spectral signatures, and (2) the use of resolved spectral signatures from control and exposed populations obtained from resampling of pixel subsets analyzed by MCR-ALS multiset analysis as information for the tissue-specific PLS-DA classification models. Classification results diagnose the presence of a significant effect and identify the spectral regions at a tissue level responsible for the biological change.

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Toxicity assessment of atmospheric particulate matter in the Mediterranean and Black Seas open waters

Cited by 28 publications

References 47 publications

Atmospheric particle-bound organophosphate ester flame retardants and plasticizers in a North African Mediterranean coastal city (Bizerte, Tunisia)

Atmospheric particle-bound organophosphate ester flame retardants and plasticizers in a North African Mediterranean coastal city (Bizerte, Tunisia)

Occurrence, Loading, and Exposure of Atmospheric Particle-Bound POPs at the African and European Edges of the Western Mediterranean Sea

Combining hyperspectral imaging and chemometrics to assess and interpret the effects of environmental stressors on zebrafish eye images at tissue level

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