Assessment of the contamination of Lactuca sativa L. (lettuce) and Lycopersicon esculentum (tomato) by pesticides: Case of market gardeners in Ouagadougou

Background and Aim: The use of pesticides in vegetable production can cause public health problems because these agrochemicals can leave residues in foodstuffs and disrupt the appropriate functioning of the organism. The aim of this study was to assess the level of contamination of lettuce and tomato by pesticide residues. Materials and Methods: This study was conducted from February 12 to May 3, 2021, in concerned five market gardening sites in the city of Ouagadougou. A survey was conducted among 58 market gardeners selected at random from the sites of Boulmiougou, Tanghin No. 1 and 2, Bissigin, and the National School of Public Health. Simultaneously, 25 lettuce samples and 25 tomato samples were collected in a randomized manner for the examination and determination of pesticide residues using the quick, easy, cheap, effective, rugged, and safe method. Results: The market gardening population was predominantly represented by women who had a low level of education. The cultivated species were a mixture of exotic cultures and traditional cultures. These crops were treated with various pesticides, the most common of which belonged to the organochlorine family. The tomato was the crop most contaminated by pesticide residues. However, no active ingredient from the synthetic pyrethroid family was found on lettuce or tomato. Conclusion: Raising the awareness of market gardeners on good practices in the use of pesticides and on alternative methods to synthetic phytosanitary products is of paramount importance for the health of consumers.

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Determination of Levels of Organochlorine, Organophosphorus, and Pyrethroid Pesticide Residues in Vegetables from Markets in Dar es Salaam by GC-MS

International Journal of Analytical Chemistry ◽

10.1155/2017/4676724 ◽

2017 ◽

Vol 2017 ◽

pp. 1-9 ◽

Cited By ~ 5

Author(s):

John A. M. Mahugija ◽

Farhat A. Khamis ◽

Esther H. J. Lugwisha

Keyword(s):

Public Health ◽

Mass Spectrometry ◽

Pesticide Residues ◽

Dar Es Salaam ◽

Gas Chromatography Mass Spectrometry ◽

Pyrethroid Pesticide ◽

Maximum Residue Limits ◽

Samples And Sampling ◽

Dar Es Salaam City

This study investigated the levels of pesticides and metabolites in vegetables from major markets in Dar es Salaam city, Tanzania. Samples of fresh cabbage, spinach, and onions from the markets were analysed for pesticide residues. Extraction was performed using acetone followed by dichloromethane : cyclohexane mixture and the extracts were cleaned up using Florisil. The compounds were determined by gas chromatography-mass spectrometry (GC-MS). Pesticides and metabolites were detected in 72.2% of the samples. The detected pesticide residues and their highest mean concentrations were p,p′-DDT 4.00 × 10−3 mg/kg, p,p′-DDD 6.40 × 10−1 mg/kg, o,p′-DDD 1.00 × 10−2 mg/kg, α-endosulfan 6.00 × 10−1 mg/kg, β-endosulfan 2.10 × 10−1 mg/kg, chlorpyrifos 3.00 mg/kg, and cypermethrin 4.00 × 10−2 mg/kg. The most frequently detected compounds were p,p′-DDD and chlorpyrifos. The order of contamination was spinach > cabbage > onions. Generally, there were no significant variations in concentrations of pesticide residues among samples and sampling sites, which indicated similarities in contamination patterns. The concentrations of contaminants were above the maximum residue limits (MRLs) in 33.3–50% of the samples. The findings indicated risks and concerns for public health.

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Evaluation of the Sustainability of Urban Market Gardens in the City of Meknes (Morocco)

European Scientific Journal ESJ ◽

10.19044/esj.2021.v17n40p121 ◽

2021 ◽

Vol 17 (40) ◽

pp. 121

Author(s):

Ibrahim El Ghazi ◽

Janvier Egah ◽

Claude Ahouangninou ◽

Imane Berni ◽

Aziza Menouni ◽

...

Keyword(s):

Spatial Organization ◽

Genetically Modified Organisms ◽

Agricultural Practices ◽

Limiting Factor ◽

Vegetable Production ◽

Economic Dimension ◽

Financial Autonomy ◽

Market Gardening ◽

Chemical Inputs ◽

The City

Market gardening constitutes a basis for food security of urban and peri-urban households. However, market gardening is subject to the use of chemical inputs, selected varieties, and genetically modified organisms. These practices are increasingly controversial and are likely to affect the sustainability of vegetable farms. This study assessed the sustainability of 120 randomly selected market garden farms (Meknes) using the surveys and the market garden production sustainability indicator. The results show that the majority of the farms identified are characterized by low sustainability, with the agroecological dimension being the limiting factor. The improvement of the components "Ecological diversity", "Spatial organization", and "Agricultural practices" are the ways to improve the global sustainability of vegetable production in Meknes. The socio-territorial sustainability of production is characterized by a lack of training for producers, a lack of hygiene and safety in production activities, and a low contribution to employment. The economic dimension is characterized by low viability, low economic transmissibility, and financial autonomy. To perpetuate the market gardening in the city of Meknes, it appears necessary to promote ecological intensification, integrated diversification, and promotion of local inputs to the various types of market gardening farms

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Perencanaan Sistem Pengurangan Sampah Permukiman Bantaran Sungai Cidurian Kota Bandung

Jurnal Serambi Engineering ◽

10.32672/jse.v4i2.1466 ◽

2019 ◽

Vol 4 (2) ◽

Author(s):

Raka Maulana ◽

Yulianti Pratama ◽

Lina Apriyanti

Keyword(s):

Waste Management ◽

River Basin ◽

River Flow ◽

Waste Reduction ◽

Residential Areas ◽

Community Based ◽

Inorganic Waste ◽

Waste Bank ◽

The City

<p>Some areas in the city of Bandung is an area that dilitasi by the flow of the river, to prevent the introduction of garbage into the river basin is necessary to note the waste management systems in residential areas along the river. Cidurian river has a length of 24.86 Km along the river flow. Consists of the city of Bandung and Bandung regency. Administrative regions Cidurian River past eight (8) districts, from the region in the District Kiaracondong precisely Village Babakan Babakan Sari and Surabaya populous and the most densely populated. Thus, there should be community-based waste management in the form of a reduction in resources to prevent potential entry of waste into the river basin. Planning waste reduction will be divided into two, namely the reduction of inorganic waste with waste bank then the reduction of organic waste with absorption holes biopori, and bio reactor mini determination of the reduction is determined by the results of the analysis of the sampling covers the composition and garbage, then the result of the measurement characteristics test and analysis results questionnaire.</p>

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RHEUMATOLOGIC PATIENTS HOSPITALIZATION FEATURES

EMERGENCY MEDICAL CARE ◽

10.24884/2072-6716-2018-19-3-19-24 ◽

2018 ◽

Vol 19 (3) ◽

pp. 19-24

Author(s):

A. S. Povzun ◽

V. I. Mazurov

Keyword(s):

Emergency Care ◽

Scientific Research ◽

Scientific Research Institute ◽

Current Structure ◽

The City ◽

Research Institute

The purpose of the work was to study the nosological structure of rheumatologic patients hospitalized in emergency hospitals. The analysis of the obtained distribution and its comparison with the structure of patients at the Scientific Research Institute of emergency care named after I. I. Djanelidze and the City Rheumatology Center were done. Determination of the current structure of hospitalization of rheumatologic patients can serve as a basis of its forecasting for the subsequent periods.

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On the issue of optimization of atmospheric air quality monitoring for the implementation of the Federal project «Clean Air»

Russian Journal of Occupational Health and Industrial Ecology ◽

10.31089/1026-9428-2019-59-11-931-936 ◽

2019 ◽

pp. 931-936

Author(s):

I. V. May ◽

A. A. Kokoulina ◽

S. Yu. Balashov

Keyword(s):

Public Health ◽

Air Quality ◽

Environmental Monitoring ◽

Monitoring System ◽

Protection Measures ◽

Atmospheric Air ◽

Monitoring Programs ◽

Clean Air ◽

Effectiveness And Efficiency ◽

The City

Introduction. The city of Chita of Zabaikalsky region is one of the cities of Russia, priority on level of pollution of atmosphere. Of the order of 130 impurities emitted by the sources of the city, 12 are monitored at 5 posts of the Roshydromet network. Maximum monthly average concentrations are formed by benz (a) pyrene (up to 56.8 MPC), hydrogen sulfide (12.3 MPC), suspended particles (up to 4PDC), phenol (up to 3.6 MPC). Significant emissions (59.73 thousand tons in 2018) are aggravated by the use of coal as a fuel by heat and power enterprises and the private sector, climatic and geographical features. Within the framework of the Federal project “Clean Air” of the national project “Ecology”, it is envisaged to reduce the gross emission of pollutants into the atmosphere of Chita by 8.75 thousand tons by 2024, which should lead to a significant improvement in the safety and quality of life of citizens. It is necessary to identify the most “risky “components of pollution for health.It is important to understand: whether the environmental monitoring system reflects the real picture of the dangers posed by pollution of the city’s atmosphere; whether there is a need to optimize the monitoring system for the subsequent assessment of the effectiveness and efficiency of measures; what impurities and at what points should be monitored in the interests of the population, administration and economic entities implementing air protection measures.The aim of the study is to develop recommendations for optimizing the program of environmental monitoring of air quality in the city of Chita, taking into account the criteria of danger to public health for the subsequent evaluation of the effectiveness and effectiveness of the Federal project “Clean Air”.Materials and methods. Justification of optimization of monitoring programs was carried out through the calculation of hazard indices, considering: the mass of emissions and toxicological characteristics of each chemical; the population under the influence. A vector map of the city with a layer “population density” was used as a topographic base. The indices were calculated for regular grid cells covering the residential area. For each cell, the repeatability of winds of 8 points from the priority enterprises and the population within the calculated cell were taken into account. As a result, each calculation cell was characterized by a total coefficient, taking into account the danger of potential impacts of emissions. Based on the results of the assessments, recommendations were formulated to optimize the placement of posts in the city and the formation of monitoring programs.Results. Indices of carcinogenic danger to the health of the population of Chita ranged from 584,805. 96 to 0.03 (priorities: carbon (soot), benzene, benz (a) pyrene); indices of non-carcinogenic danger — from 1,443,558. 24 to 0.00 (priorities: sulfur dioxide, inorganic dust containing 70–20% SiO2, fuel oil ash). The greatest danger to public health stationary sources of emissions form in the North-Western, Western and South-Eastern parts of the city. Roshydromet posts in these zones are absent.Conclusions. As part of the objectives of the project “Clean Air”, it is recommended to Supplement the existing state network of observations of atmospheric air quality in Chita with two posts; to include manganese, xylene, vanadium pentoxide in the monitoring programs, to carry out the determination of Benz(a)pyrene et all posts, which will allow to fully and adequately assess the danger of emissions of economic entities, as well as the effectiveness and efficiency of the provided air protection measures.

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