scholarly journals SPATIAL DISTRIBUTION AND LEVELS OF AIR QUALITY PARAMETERS WITHIN ASABA AND ENVIRONS, DELTA STATE, NIGERIA

2020 ◽  
pp. 1-6
Author(s):  
Prof. Atubi, Augustus ◽  
Osoyibo, Joseph
Keyword(s):  
Spatial Distribution ◽  
Air Quality ◽  
Quality Parameters ◽  
World Health ◽  
Ambient Conditions ◽  
Rural Environments ◽  
Regulatory Limits ◽  
Volatile Organic ◽  
Guidelines And Standards ◽  
Health Organization

This study investigated the levels and spatial distribution of key air quality parameters within Asaba and environs.Five locations were sampled to assess the concentration of Nitrogen dioxide (NO2), Sulphur dioxide (SO2), hydrogen sulphide (H2S), carbon monoxide (CO) and volatile organic compounds (VOCs). Measurement of Air pollutants methods approved by ASTM was adopted for each specific parameter. All equipment and meters were properly precalibrated before each usage for quality assurance.Findings of the study showed that measured levels of CO (0.08-0.20 ppm),H2S (0.01-0.10 ppm) and VOCs (13-20 ppm) in all sampling areas were below World Health Organization (WHO) and National Air Quality (NAQ) Guidelines and Standards for ambient conditions. However, NO2 (0.11-0.25 ppm) in all sampling areas was quite high and above regulatory limits.SO2 (0.15-0.25 ppm) was within the acceptable limit in Okwe and Ibusa but above regulatory limits in Asaba,Anwai and Okpanam.The results suggest Routine measurements should be made on a continuous basis to ascertain the volume of gaseous pollutants in the urban and rural environments

scholarly journals Study Literature Review : The Effect of Lockdown on the Covid19 Pandemic Period on Air Quality

2020 ◽  
Vol 12 (1si) ◽  
pp. 11
Author(s):  
Shofi Hikmatus Zahro
Keyword(s):  
Air Quality ◽  
Literature Review ◽  
Health Sector ◽  
Quality Parameters ◽  
World Health ◽  
Inclusion Criteria ◽  
Narrative Literature ◽  
Review Study ◽  
Narrative Literature Review ◽  
Health Organization

Introduction: Covid19 is an infectious disease caused by the corona virus. This virus was first detected in Wuhan China. Covid19 has been defined as pandemic by the World Health Organization (WHO) since March 11, 2020. So there needs to be a policy to overcome the pandemic by implementing lockdown. The effect on the health sector one of which is environmental health includes air quality. The purpose of this literature review study is to determine the effect of the lockdown policy during the Covid19 pandemic on air quality parameters. Discussion: This research used a narrative literature review method. Selected journals that match the topic and inclusion criteria. The results of data analysis show that there is an effect of the lockdown policy during the Covid19 pandemic, namely an increase in AQI and O3 . Meanwhile, decreased concentration occurs in the PM10; PM2.5; NO2 ; CO; and SO2 parameters. Conclusion: Lockdown policy provided a big influence on the air quality in Sale City Marocco and Sao Paulo Brazil. Lockdown policies during the Covid19 period strongly influenced the concentration of NO2 .6

scholarly journals Implications of portable gasoline electricity generators on residential indoor air quality

2021 ◽  
Author(s):  
Adinife Patrick Azodo ◽  
Idama Omokaro ◽  
Tochukwu Canice Mezue
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Measurement Techniques ◽  
Quality Parameters ◽  
Air Pollutant ◽  
World Health ◽  
Mean Values ◽  
Ogun State ◽  
Health Organization

Introduction: Toxic gases emitted from electricity generating plants used for energy production process diffuse in the environment thereby causing environmental air pollution. The effect of the installation and usage of portable gasoline electricity generating plants at the balcony of different households on the indoor air quality was assessed in this study. Materials and methods: The data collected were the air quality chemical composition variables which include carbon-dioxide, formaldehyde, total volatile organic compounds, coarse (PM10), and fine (PM2.5) particulate matters at the indoor of the households in Abeokuta metropolis, Ogun state, Nigeria. Physical measurement techniques used for the data collection was through the instrumentation design of two air quality testers, models WP6910 and ZN-202S. The indoor air quality assessment followed the generator nighttime usage routine between the hours of 6:30 – 10:00 pm at a measurement height of 1.3 m and the center in the living rooms of the residences assessed. Results: The analysis of the data obtained showed that the mean values for each of the air quality parameters obtained during generator usages were significantly higher when compared to the indoor air quality parameters before generator usages at p<0.05. The air pollutant levels before and during generator usages were within the established safe standard air quality limit by the world health organization. Conclusion: However, for the installation of a portable electricity generator at the residents’ balcony, it is recommended that the generators should be adapted with an emission reduction device for the exhaust composition amelioration to avoid possible accumulation effect over time.

scholarly journals SPATIAL AND STATISTICAL ANALYSIS OF LEPTOSPIROSIS IN GUILAN PROVINCE, IRAN

2015 ◽  
Vol XL-1-W5 ◽  
pp. 497-502 ◽  
Author(s):  
A. Mohammadi Nia ◽  
A. Alimohammadi ◽  
R. Habibi ◽  
M. R. Shirzadi
Keyword(s):  
Spatial Distribution ◽  
Pathogenic Bacteria ◽  
Rice Field ◽  
Health Planning ◽  
World Health ◽  
Nearest Neighbour ◽  
Clustering Methods ◽  
Spatial Clusters ◽  
North Of Iran ◽  
Health Organization

The most underdiagnosed water-borne bacterial zoonosis in the world is Leptospirosis which especially impacts tropical and humid regions. According to World Health Organization (WHO), the number of human cases is not known precisely. Available reports showed that worldwide incidences vary from 0.1-1 per 100 000 per year in temperate climates to 10-100 per 100 000 in the humid tropics. Pathogenic bacteria that is spread by the urines of rats is the main reason of water and soil infections. Rice field farmers who are in contact with infected water or soil, contain the most burden of leptospirosis prevalence. In recent years, this zoonotic disease have been occurred in north of Iran endemically. Guilan as the second rice production province (average=750 000 000 Kg, 40% of country production) after Mazandaran, has one of the most rural population (Male=487 679, Female=496 022) and rice workers (47 621 insured workers) among Iran provinces. The main objectives of this study were to analyse yearly spatial distribution and the possible spatial clusters of leptospirosis to better understand epidemiological aspects of them in the province. Survey was performed during the period of 2009–2013 at rural district level throughout the study area. Global clustering methods including the average nearest neighbour distance, Moran’s I and General G indices were utilized to investigate the annual spatial distribution of diseases. At the end, significant spatial clusters have been detected with the objective of informing priority areas for public health planning and resource allocation.

scholarly journals Assessment of Water Quality in Kuntaur, Central River Region, The Gambia

2020 ◽  
Vol 9 (3) ◽  
pp. 233-243
Author(s):  
Oladele Oyelakin ◽  
◽  
Mustapha Conteh ◽  
Osaro Iyekowa ◽  
Adjivon Anthony ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
The Gambia ◽  
World Health ◽  
Sampling Locations ◽  
River Region ◽  
National Environment ◽  
Environment Agency ◽  
Health Organization ◽  
Nitrite Nitrate

The study deals with twelve water quality parameters on twenty-four sampling locations in Kuntaur. Samples were collected from the both surface water and groundwater. Twelve parameters were: temperature, pH, conductivity, acidity, alkalinity, total dissolved solids, turbidity, iron, nitrite, nitrate, sulphate and phosphorus (orthophosphate). Nearly all the measured parameters fell within the standard reference of the various parameters. The standards were: National Environment Agency, NEA, (The Gambia), World Health Organization, WHO and European Union, EU, Standards.

Ground Water Use Near an Open Dumpsite in a Peri-urban Community

2021 ◽  
Vol 47 (2) ◽  
pp. 252-257
Author(s):  
O.A. Mokuolu ◽  
I. Olaniyi ◽  
J.O. Iji
Keyword(s):  
Calcium Nitrate ◽  
Quality Parameters ◽  
World Health ◽  
Total Hardness ◽  
High Concentration ◽  
Residential Community ◽  
Physico Chemical ◽  
High Turbidity ◽  
Health Organization ◽  
Iron Manganese

Quality of groundwater used for drinking and domestic purposes near an open dumpsite was investigated. Groundwater parameters for wells GW1, GW2, GW3 and GW4 were analysed and their values were compared with World Health Organization (WHO) and Nigerian Standard for Drinking Water Quality (NSDWQ). Physico-chemical and bacteriological analysis were carried out to determine the quality. Parameters analysed include; Temperature, Turbidity, Total Hardness, pH, Alkalinity, Electrical Conductivity, Total Dissolved Solids, Total Suspended Solids, Total Solids, Magnesium, E-coli, Calcium, Nitrate, BOD, COD, DO, Chloride, Sulphate, Iron, Manganese and Lead. The results indicated that all parameters except turbidity, iron and lead were within the standards, all samples showed high concentration of iron and lead while GW1, GW2 and GW3 showed high Turbidity. The study concluded that groundwater situated around the dumpsite is unfit for drinking purposes. An engineered landfill located away from residential community was recommended.

scholarly journals Groundwater quality assessment of Shahdadkot, Qubo Saeed Khan and Sijawal Junejo Talukas of District Qambar Shahdadkot, Sindh

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Muhammad Farooque Lanjwani ◽  
Muhammad Yar Khuhawar ◽  
Taj Muhammad Jahangir Khuhawar
Keyword(s):  
Water Quality ◽  
Principal Component ◽  
Quality Parameters ◽  
World Health ◽  
Coefficient Of Determination ◽  
High Concentration ◽  
Permissible Limits ◽  
Groundwater Samples ◽  
Health Organization

AbstractThe study examines the water quality of Shahdadkot, Qubo Saeed Khan and Sijawal Junejo talukas of Qambar Shahdadkot District, less affected by industrial contamination. A total of 38 groundwater samples were collected and analysed for 28 parameters. The results indicated that 57.89% samples were not suitable for drinking purpose with total dissolved solids above than maximum permissible limit of World Health Organization (WHO) (1000 mg/L). The pH, total phosphate, orthophosphate and nitrite were within WHO limits. The concentration of essential metals more than half samples, fluoride in 60.52% and heavy metals 0–50% were contaminated higher than permissible limits of WHO. The statistical analysis of water quality parameters was also carried out to evaluate coefficient of determination among the parameters, cluster analysis and principal component analysis. Water quality determined for irrigation based on Kelly index (KI), sodium percentage (Na%), chloride–sulphate ratio, sodium adsorption ratio, permeability index (PI), chloroalkaline indices 1 (CAI-1), residual sodium carbonate and chloride bicarbonate ratio indicated that samples (55 to 100%) could be used for irrigation purposes. The consumption of water with high concentration of salts and fluoride above the permissible limits may be a cause of a number of diseases in the area.

A PRELIMINARY SURVEY OF AIR QUALITY IN MAKASSAR CITY SOUTH SULAWESI INDONESIA

2012 ◽  
Vol 57 (1) ◽  
Author(s):  
SATTAR A. ◽  
M. RASHID ◽  
R. MAT ◽  
L. PUJI
Keyword(s):  
Air Quality ◽  
Suspended Particle ◽  
Ambient Air ◽  
Quality Standard ◽  
World Health ◽  
Quality Data ◽  
Preliminary Survey ◽  
South Sulawesi ◽  
Ambient Air Quality Standard ◽  
Health Organization

Makassar has a strategic position as it is located in between the south and north in the provinces of South Sulawesi. Thus, the rapid growth of urbanization and industrialization within the area is unavoidable, resulting Makassar to be an area of mixed commercial–residential–industrial along with the problem of air pollution. Hence, it is important to monitor the quality of air in Makassar. This paper presents a preliminary survey of urban air quality in Makassar area based on SO2, CO, NO2, O3, Pb, and TSP (Total Suspended Particle) sampled over ten years period (2001 to 2010), while PM10was monitored for five years (2006 to 2010). The air quality data were obtained from measurements made by the Office of Ministry of Environment Sulawesi, Maluku and Papua and Environment Board of the Province of South Sulawesi as well as Environment agency of Makassar City. The average annual concentrations of SO2, CO, NO2, O3, Pb, TSP and PM10 recorded were 76 μg/m3, 1041 μg/m3, 43.2 μg/m3, 54.5 μg/m3, 0.7 μg/m3, 188 μg/m3, 54.6 μg/m3, respectively. Subsequently, these data are compared to the air quality threshold limits recommended by the Indonesia National Ambient Air Quality Standard (INAAQS) as well as guidelines of the World Health Organization (WHO).

scholarly journals Long-Term Assessment of Air Quality and Identification of Aerosol Sources at Setúbal, Portugal

2020 ◽  
Vol 17 (15) ◽  
pp. 5447 ◽  
Author(s):  
Alexandra Viana Silva ◽  
Cristina M. Oliveira ◽  
Nuno Canha ◽  
Ana Isabel Miranda ◽  
Susana Marta Almeida
Keyword(s):  
Air Quality ◽  
Urban Areas ◽  
Air Pollutants ◽  
Air Pollutant ◽  
Urban Traffic ◽  
Anthropogenic Sources ◽  
World Health ◽  
Mitigation Measures ◽  
Guideline Values ◽  
Health Organization

Understanding air pollution in urban areas is crucial to identify mitigation actions that may improve air quality and, consequently, minimize human exposure to air pollutants and their impact. This study aimed to assess the temporal evolution of the air quality in the city of Setúbal (Portugal) during a time period of 10 years (2003–2012), by evaluating seasonal trends of air pollutants (PM10, PM2.5, O3, NO, NO2 and NOx) measured in nine monitoring stations. In order to identify emission sources of particulate matter, PM2.5 and PM2.5–10 were characterized in two different areas (urban traffic and industrial) in winter and summer and, afterwards, source apportionment was performed by means of Positive Matrix Factorization. Overall, the air quality has been improving over the years with a decreasing trend of air pollutant concentration, with the exception of O3. Despite this improvement, levels of PM10, O3 and nitrogen oxides still do not fully comply with the requirements of European legislation, as well as with the guideline values of the World Health Organization (WHO). The main anthropogenic sources contributing to local PM levels were traffic, industry and wood burning, which should be addressed by specific mitigation measures in order to minimize their impact on the local air quality.

scholarly journals Issuances of Automotive Vehicles and the Impacts on Air Quality in the Largest City in the Brazilian Amazon

2018 ◽  
Vol 10 (11) ◽  
pp. 4091 ◽  
Author(s):  
Elizabeth Cartaxo ◽  
Ilsa Valois ◽  
Vladimiro Miranda ◽  
Marcia Costa
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Traffic Congestion ◽  
Brazilian Amazon ◽  
World Health ◽  
Sampling Locations ◽  
The World ◽  
Health Organization ◽  
The City ◽  
Over Time

Manaus, a city of more than two million people, suffers problems arising from strong sunlight and aggravated by several factors, such as traffic congestion and greenhouse gas emissions generated by evaporation and burning of fuel. The present study examined Carbon Monoxide (CO) and Nitrogen Dioxide (NO2) emissions in an urban area of the city using different methodologies. CO and NO2 were measured using automated and passive analyzers, respectively. Meanwhile, direct monitoring of these pollutants was performed in vehicular sources in the vicinity of sampling locations. Results showed that levels of carbon monoxide vary over time, being higher during peak movement of vehicles. NO2 values have exceeded the recommendations of the World Health Organization (WHO), and monitoring at source showed high levels of CO and NO2 emissions to the atmosphere.

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