scholarly journals Effect of transport measures and curfew against COVID-19 spread on air pollution (TSP) in Ecuador’s three most populous cities

2020 ◽  
Vol 1 (1) ◽  
pp. 54-59 ◽  
Keyword(s):  
Air Pollution ◽  
Sustainable Consumption ◽  
National Level ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Level Ii ◽  
Suspended Particulate ◽  
Sustainable Consumption And Production ◽  
Pm2.5 And Pm10 ◽  
Future Consequences

Although the current situation poses challenges to foretelling the future consequences of coronavirus spread, we consider that environmental load-related research has become more important than ever before. Many experts believe that in the framework of increasingly dire public health emergency, policy and decision makers should facilitate COVID-19 outbreak to transitioning to sustainable consumption and production. With the purpose of evaluating the importance of sustainability efforts, here we describe the total suspended particulates (TSP), originating from traffic emissions, caused by air pollution in the three most populous cities of Ecuador. Compared are measurements taken prior to, during, and after (i) traffic measures entered into force at national level; (ii) curfew entered into force at national level; and (iii) quarantine entered into force (in Guayaquil, and whole Guayas province). We documented significant decrease in TSP emissions (PM2.5 and PM10) as compared to normal traffic proceeding in four-lane roads, in the cities of Quito, Guayaquil, and Cuenca. The most substantial drop in suspended particulate values (96.47% decrease in PM2.5) relative to emissions observed prior to restricting traffic occurred in Cuenca.

Effect of transport measures and curfew against COVID-19 spread on air pollution (TSP) in Ecuador’s three most populous cities

2020 ◽  
Keyword(s):  
Air Pollution ◽  
Sustainable Consumption ◽  
State Level ◽  
Emergency Situation ◽  
Traffic Emission ◽  
Policy Makers ◽  
Total Suspended Particulates ◽  
Level Ii ◽  
Pm2.5 And Pm10 ◽  
Future Consequences

Although current circumstances pose challenges to foretelling the future consequences of coronavirus spread, we consider environmental load-related researches became more and more important nowadays perhaps as never before. Many experts believe that the increasingly dire public health emergency situation, policy makers and word leaders should make it possible that the COVID-19 outbreak contributes to a transition of sustainable consumption. With the purpose of contributing to rethink the importance of sustainability efforts, here we present total suspended particulates (TSP) results which represent traffic emission caused air pollution in the three most populous cities of Ecuador obtained before, during, and after the: (i) the traffic measures entered into force on state level; (ii) curfew entered into force on state level; (iii) and quarantine entered into force (in Guayaquil, and whole Guayas province). We documented significant decrease in TSP emissions (PM2.5 and PM10) compared to normal traffic operation obtained from some four lanes roads in Quito, Guayaquil, and Cuenca. The most remarkable fall in suspended particulate values (96.47% decrease in PM2.5) compared to emission observed before traffic measures occurred in Cuenca.

Multispectral air pollution sensor to characterize of total suspended particulates (TSP) concentration

2009 ◽  
Author(s):  
S. G. Daraigan ◽  
M. Z. MatJafri ◽  
K. Abdullah ◽  
H. S. Lim ◽  
C. J. Wong
Keyword(s):  
Air Pollution ◽  
Suspended Particulates ◽  
Total Suspended Particulates

scholarly journals Toxicity potential of particulates in the airshed of haulage vehicle park

2013 ◽  
Vol 15 (4) ◽  
pp. 466-473 ◽  
Keyword(s):  
Control Point ◽  
Ambient Air ◽  
Sampling Point ◽  
Total Suspended Particulate ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Suspended Particulate ◽  
Toxicity Potential ◽  
Major Highway ◽  
Regulatory Measure

<p>This study examined the toxicity potential of total suspended particulate in the airshed of a haulage vehicle park located in a major highway connecting Lagos, the commercial centre of Nigeria to its other parts. It has an approximate area of 0.6 km2. Ambient air total suspended particulates (TSP) were monitored at five different sub- parks using the GT331 particulate monitor. A control sampling point was also set at about a kilometer southward of the sub-parks. The average measured particulate concentrations within the park ranged between 197.07 and 653.28 &micro;g m-3 with an average of 334.5 &micro;g m-3 but at the control point, it was between 18.5 and 46.6 &micro;g m-3 with an average of 36.23 &micro;g m-3. An assessment of toxicity potential of these particulates shows unhealthy air conditions at the haulage park. It was between 0.58 and 6.00 at the park&rsquo;s sampling points but ranged between 0.11 and 0.33 at the control location. This study establishes that haulage vehicles may contribute significantly to its host airshed degraded air quality thus calls for appropriate regulatory measure to protect commuters plying the major highway around the park.</p>

Use of a Tracer to Determine Contribution of a Power Plant to Suspended Particulate Levels

1977 ◽  
Vol 99 (3) ◽  
pp. 335-340
Author(s):  
T. T. Frankenberg ◽  
G. F. Collins ◽  
D. W. McGrail
Keyword(s):  
Power Plant ◽  
Electrostatic Precipitator ◽  
Total Concentration ◽  
Tracer Tests ◽  
High Volume ◽  
Suspended Particulates ◽  
Total Suspended Particulates ◽  
Power Company ◽  
Suspended Particulate ◽  
Many Sources

The problem of determining the percentage contribution of a single power plant to ambient levels of total suspended particulates, when there are many sources of identical particulates in a community, has been approached by injecting a gas tracer (SF6) into the stack effluent of the power plant. On the premise that small particles leaving the stack after an electrostatic precipitator are dispersed in the same manner as a gas, a simple dilution ratio between gas emitted to gas captured is applied to particulates emitted to obtain the contribution to total particulates captured by high-volume air samplers. Tracer tests at the Kanawha River plant of the Appalachian Power Company indicated the plant’s contribution to total suspended particulates was below 10 percent of the total concentration observed in the community. This value was further substantiated when similar results were obtained by multiple regression analyses between stack emissions, wind speed, wind direction, and observed total suspended particulates.

scholarly journals Do Tourism Activities and Urbanization Drive Material Consumption in the OECD Countries? A Quantile Regression Approach

2021 ◽  
Vol 13 (14) ◽  
pp. 7742
Author(s):  
Taiwo Temitope Lasisi ◽  
Kayode Kolawole Eluwole ◽  
Uju Violet Alola ◽  
Luigi Aldieri ◽  
Concetto Paolo Vinci ◽  
...  
Keyword(s):  
Sustainable Consumption ◽  
Oecd Countries ◽  
Real Income ◽  
Income Growth ◽  
Material Consumption ◽  
Domestic Consumption ◽  
Sustainable Consumption And Production ◽  
Global Goal ◽  
Development Goals ◽  
Two Parameters

The United Nations Sustainable Development Goals (UNSDGs) elaborately encompass a global goal for sustainable consumption and production (Goal 12: SDGs), thus providing potential drivers and/or pathways to attaining sustainable consumption. In view of this global goal, this study examined the role of real income per capita, urbanization and especially inbound tourism in domestic material consumption for the panel of OECD countries. The study is conducted for the period of 1995 to 2016 by employing the panel quantile approach. Interestingly, an inverted U-shaped relationship between outbound tourism and domestic material consumption is established across the quantiles, thus indicating that sustainable domestic consumption is achievable after a threshold of domestic material consumption is attained. In addition, achieving sustainable consumption through economic or income growth is a herculean task for the OECD countries because the current reality indicates that income growth triggers higher consumption of domestic materials. However, the results suggest that urbanization is a recipe for sustainable domestic consumption since there is a negative and significant relationship between the two parameters across the quantiles. Nevertheless, the study presents relevant policy for efficient material and resources utilization and that is suitable to drive the SDGs for 2030 and other country-specific sustainable ambitions.

scholarly journals A Study on the Trend of Domestic Waste Generation and the Recognition of Recycling Priorities in Korea

2021 ◽  
Vol 13 (4) ◽  
pp. 1732
Author(s):  
Seok-ho Jung ◽  
Mee-hye Lee ◽  
Seong-ho Lee ◽  
Ji Whan Ahn
Keyword(s):  
Sustainable Consumption ◽  
Waste Recycling ◽  
Household Waste ◽  
Waste Generation ◽  
Analytic Hierarchy ◽  
Sustainable Consumption And Production ◽  
Survey Results ◽  
Scrap Metals ◽  
Hierarchy Process

In September 2015, the United Nations included ‘sustainable consumption and production’ as part of its 12th goal of sustainable development. The EU announced its Circular Economic Package in December 2015 to move from the existing linear economic structure to the net environmental system. Recycling of household waste has become more significant as a circular economic policy has been implemented to reflow waste into the economy through recycling worldwide. In this study, Korea’s household waste generation for 20 years from 1998 to 2017 was analyzed through statistical techniques. Waste generation tended to increase in the order of plastics and cans, and papers tended to decrease. The amount of bottle wastes has been on the decline after increasing. A questionnaire survey on recycling priority was conducted on 261 people, including participants in the EARTH-2019 recycling experience hall, using the analytic hierarchy process (AHP) technique. According to the survey, the recycling priorities of six types of household waste are (first) plastic, (second) cans, viny, scrap metals, (third) paper, and (fourth) bottles. Statistical analysis of mid- to long-term household waste generation and AHP-based household waste recycling priority survey results can be used as basic data, such as environmental analysis in Korea’s recycling-related policies and research.

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