Chemosphere, Journal Year: 2022, Volume and Issue: 307, P. 135553 - 135553
Published: July 1, 2022
Language: Английский
Aerosol and Air Quality Research, Journal Year: 2023, Volume and Issue: 23(2), P. 220309 - 220309
Published: Jan. 1, 2023
A severe dust storm blanketing Central Asia on 3–4 November 2021 was investigated employing satellite remote-sensing, synoptic meteorological observations, reanalysis and HYSPLIT back-trajectories. The prevailing conditions showed an intensification of air subsidence over eastern Kazakhstan, featured in a typical omega-blocking system the region two troughs to its west east axis, one day before storm. high-pressure temperature gradients Kazakhstan modulated dominant anticyclonic wind pattern generated from south Balkhash basin toward Caspian Sea, causing huge that covered southern half large parts Uzbekistan, Tajikistan Turkmenistan. originated steppes by violent downdraft winds. Initially it swept then whole reaching Sea west. Meteorological measurements back-trajectories at selected sites (Turkmenabat, Khujand Tashkent) remarkable impact reduced (by 2–4°C) visibility below 1 km different periods, as thick plume expanded various directions. extremely high PM concentrations (PM10 > 10,000 µg m–3 could endanger both human health environment, especially suffering susceptibility erosion significant land degradation desertification. Effective immediate stabilising measures control vulnerable areas are warranted.
Language: Английский
Citations
15
Chemosphere, Journal Year: 2023, Volume and Issue: 344, P. 140351 - 140351
Published: Oct. 3, 2023
Language: Английский
Citations
12
PLoS ONE, Journal Year: 2025, Volume and Issue: 20(5), P. e0322300 - e0322300
Published: May 12, 2025
This study assesses heavy metal contamination in the snow cover of northeastern Kazakhstan by analyzing both melted filtrated water and solid sediment after filtration near various pollution sources. The research examines impact oil refining, thermal power plants (northern industrial zone), aluminum production (eastern transportation on dispersion. Results indicate that Zn, Cr, Pb concentrations phase residential areas exceed those zones, reaching 436.6, 259.1, 218.6 mg/kg, respectively. highest overall were found for barium (949.4 mg/kg) manganese (638.1 mg/kg). In liquid fraction (meltwater), Zn (58.6 μg/l) Sr (34.8 predominant, while Mn (28.3 was main pollutant eastern zone. Dust load values ranged from 42.3 to 418.5 mg/m²/day, with observed Cd, Pb, Mo. Despite variations dust across city (135.5 mg/m²/day northern zone, 152.3 147.1 areas), level remains low. However, a sanitary-hygienic assessment revealed most maximum permissible levels soil influenced facilities transportation, except Mo, V, Mn. ecological risk index Pavlodar calculated at 192.13, indicating high potential risk. These findings highlight importance as an indicator environmental need continuous monitoring assess urban trends.
Language: Английский
Citations
0
Sustainability, Journal Year: 2024, Volume and Issue: 16(12), P. 5190 - 5190
Published: June 18, 2024
This study focused on predicting the spatial distribution of environmental risk indicators using mathematical modeling methods including machine learning. The northern industrial zone Pavlodar City in Kazakhstan was used as a model territory for case. Nine models based kNN, gradient boosting, artificial neural networks, Kriging, and multilevel b-spline interpolation were employed to analyze pollution data assess their effectiveness levels. Each tackled problem regression task, aiming estimate load index (PLI) values specific locations. It revealed that maximum PLI mainly located southwest TPPs over some distance from territories according average wind rose City. Another area high part studied region, near Hg-accumulating ponds. level is generally attributed concentration Hg. method can be analysis; however, comparison with scientific literature Kriging MLBS without extra calculations produce non-linear, empirically consistent, smooth maps.
Language: Английский
Citations
2
Sustainability, Journal Year: 2022, Volume and Issue: 14(3), P. 1557 - 1557
Published: Jan. 28, 2022
In response to the Minamata Convention on Mercury, effective 16 August 2017, Taiwan government in recent years started implement sustainable material management of mercury-containing waste and articles. This was completed by a cross-ministerial collaboration for preventing adverse effects mercury human health environment, based multimedia approach. The legislative or regulatory frameworks control prevention emissions releases have been established environmental distributions, including air, water, soil, waste, food, article (or commodity). Therefore, central authorities included Environmental Protection Administration (EPA), Council Agriculture (COA), Ministry Health Welfare (MOHW), Economic Affairs (MOEA), Labor (MOL). Furthermore, implementation plans covered reduction products restricted use bans its use, remediation soil groundwater mercury-pollution sites, stationary source emissions, monitoring, compulsory recovery from electronic such as lightings. A successful case study using thermal treatment, capture activated carbon, also addressed this work. Due effectiveness Taiwan, annual reported amount air pollution sources indicated decreasing trend 1.989 metric tons 2016 1.760 2019. More significantly, ministerial implementing echoed United Nations (UN) Agenda 2030 development goals (SDGs).
Language: Английский
Citations
7
Earth and environmental sciences library, Journal Year: 2024, Volume and Issue: unknown, P. 137 - 156
Published: Jan. 1, 2024
Language: Английский
Citations
1
Chemosphere, Journal Year: 2022, Volume and Issue: 307, P. 135553 - 135553
Published: July 1, 2022
Language: Английский
Citations
4