État et évolution de la pollution atmosphérique

Elichegaray, C.; Bouallala, S.; Maitre, A.; Ba, M.

doi:10.1016/s0761-8425(09)71596-7

Cited by 12 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reduction of VOCs emission is an issue of common concern, because these compounds are toxic to the human health and some of them, such as formaldehyde or benzene, are confirmed carcinogens. 1 Moreover, they can lead to severe environmental problems such as the formation of photochemical oxidant species. 2 For this reason, several methods are used to reduce the emission of VOCs such as catalytically-assisted decomposition and trapping in porous material.…”

Section: Introductionmentioning

confidence: 99%

New Generation of Zeolite Materials for Environmental Applications.

et al. 2016

View full text Add to dashboard Cite

The influence of the morphology (microcrystals, nanocrystals, nanosponges and nanosheets) of MFI and *BEA-type zeolites on their adsorption capacities and adsorption rate of n-hexane at 25 ˚C has been investigated. The capacity of n-hexane adsorption sensitive to micro-and mesopore volume is enhanced by the use of zeolite nanocrystals or hierarchical nanoporous materials (nanosheets and nanosponges). In the case of hierarchical zeolites MFI and *BEA nanosponges, the n-hexane adsorption capacities reached values of about 790 and 693 mg/g, respectively, that are much higher than those in the corresponding microcrystals (130 and 103 mg/g, respectively). On the opposite the kinetics of nhexane adsorption are slower in nanocrystals and hierarchical zeolites compared to big crystals, due to the lower crystallinity of the zeolitic material and the nature of the probe molecule.

show abstract

Section: Introductionmentioning

confidence: 99%

New Generation of Zeolite Materials for Environmental Applications.

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The levels of CO, COV and NO measured beyond the ovens during the fish smoking activity in the traditional sites of Braffèdon and Abobo-doumé are low and below the limit values. However, traditional smoking techniques require large quantities of wood, hence the production of a huge volume of CO, VOC and NO which contribute under the influence of solar radiation, to the formation of photochemical pollutants such as tropospheric ozone which is a greenhouse gas 6 and is harmful to…”

Section: Discussionmentioning

confidence: 99%

Impact of fish smoking on the environment and the respiratory system of women exercising on the traditional and modern sites of Attécoubé (Abobo-doumé and Locodjro) and Braffèdon

2019

JCBSC

View full text Add to dashboard Cite

Smokers use rudimentary methods for smoking fish that emit toxic gases (CO, VOC, NO, PAH ...), carcinogenic and dangerous for human health. In 2013 a modern oven called FAO-Thiaroye Processing Technology (FTT-Thiaroye) is introduced in Ivory Coast with the aim of protecting the health of fish smokers and their working conditions. The objective of this study is to show the impact of fish smoking on the environment and the breathing system of fish smokers depending on the type of oven used. The research was carried out from February 2017 to December 2018 at the Attécoubé (Abobo-doumé and Locodjro) and Braffèdon fish smoking sites involving 138 fish smokers and 133 other women engaged in other incomegenerating activities such as sewing, hairdressing, food marketing, etc. were chosen as unexposed subjects. The survey included a questionnaire exploring pathological antecedents and pathological respiratory manifestations in subjects. Three CO, VOC and NO campaigns were conducted over the ovens, at the women's resting place and beyond the ovens (4 to 12 meters). The levels of CO at the resting point of women in Impact … Ossehin et al.

show abstract

“…(dioxide sulfur, nitrogen oxides, particles, carbon monoxide, etc. [3]. These polluting particles mainly result from solid carbon compounds, unburned hydrocarbons, but also from tire wear and heavy metals.…”

Section: Assessment Of Atmospheric Pollutants Concentrations By Using...mentioning

confidence: 99%

Assessment of Atmospheric Pollutants Concentrations by Using Multivariate Statistical Analysis: A Case Study of Commune 5 of Niamey City, Niger

Daou

Harouna

Hassan

et al. 2022

EJGEO

View full text Add to dashboard Cite

The aim of this present study is to determine the physicochemical properties of atmospheric particles in commune 5 of the Niamey region. For this purpose, the determination of the atmospheric physical and chemical properties was carried out using a low-volume sampler, a Davis-type weather station, a balance high sensitivity, The Thermo XL2 and the black carbon reflectometer. The pollutants concerned by this study are mainly fine particulate matter (PM2.5), black carbon and heavy metals such as Cr, Cu, Hg, Mn, Ti, V, Zn, Ba, Fe and Sr. According to the result of this study which is carried out over 30 days, the PM2.5 concentrations of air measured were between 0 and 286.54 μg/L with a mean value of 11.65 μg/L. The temperature values were between 24 and 27 °C with an average value of 25.3°C. The humidity value of measured air varies between 8 and 17 % with a mean value of 13.3 %. The measured wind speed values are between 3.24 and 6.48 Km/h with an average value of 4.14 Km/h. According to World Health Organization guidelines the PM2.5, Mn, Hg, Ba, Cr and black carbon concentrations measured during this study exceeded the permissible limit values. Correlation analysis results highlighted a strong correlation between Mn-Fe, Mn-Zn, Mn-Ti, Mn-V, Mn-Cr, Zn-Ti, Zn-V, Zn-Cr, Ti-V, and Ti-Cr indicating that these ions come from a common source. According to principal component analysis for heavy metals, three principal factors that explain 87.34% of the total variance have been formed. Component 1 includes V, Zn, Ti and Cr with a variance value of 56.067 %; the second factor includes Ba and black carbon with a variance value of 19.665 % and the third factor is only represented by Sr with a variance value of 11.612 %. The high value of variance observed in the first group of components indicated that V, Zn, Ti and Cr are the main pollutants that control the air pollution in the study area.

show abstract

État et évolution de la pollution atmosphérique

Cited by 12 publications

References 0 publications

New Generation of Zeolite Materials for Environmental Applications.

New Generation of Zeolite Materials for Environmental Applications.

Impact of fish smoking on the environment and the respiratory system of women exercising on the traditional and modern sites of Attécoubé (Abobo-doumé and Locodjro) and Braffèdon

Assessment of Atmospheric Pollutants Concentrations by Using Multivariate Statistical Analysis: A Case Study of Commune 5 of Niamey City, Niger

Contact Info

Product

Resources

About