Determination of Quartz and Its Abundance in Respirable Airborne Dust in Both Coal and Metal Mines in India

Kumari, Shobha; Kumar, Rawesh; Mishra, Krushna Gopal; Pandey, Jai Krishna; Udayabhanu, G.; Bandopadhyay, Anup Kumar

doi:10.1016/j.proeng.2011.11.2371

Cited by 13 publications

(9 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Individuals exposed to this material include miners, masons, potters, road and construction workers and are susceptible to silicosis (5). Silicosis is a fairly common respiratory disease and is associated with a high mortality rate (8).…”

Section: Discussionmentioning

confidence: 99%

“…In occupational settings in developing countries, the inhalation of crystalline silica causes silicosis. However, silicosis may also occur in developed countries, particularly in occupations such as mining, stone cutting, pottery, road, and building construction, which are all associated with an increased risk of silica exposure and silicosis (5,6). Various factors such as exposure latency, exposure intensity, dust particle size, dust quality and quantity, percent of free silica, body resistance, and the presence of complicating factors such as infection are associated with the severity of silicosis (7).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Positive Effect of Chlorella vulgaris Complementary Therapy on the Symptoms and Pulmonary Function in Patients With Silicosis

et al. 2015

View full text Add to dashboard Cite

Background:Silica is an element that accounts for 28 percent of the earth's crust. Silicosis is a relatively common cause of lung disease that is associated with high morbidity and mortality. Some types of work, such as mining, stone cutting, pottery, and road and building construction are associated with an increased risk of silica exposure, which can lead to silicosis. Silicosis is divided into acute, chronic, and accelerated forms. Due to the high prevalence and lack of proper treatment, use and detection of new trophy and particular prophylaxis methods against this disease is needed. Objectives: In addition, due to the side effects of drugs and the lack of their complete efficacy, we studied the effects of the natural compound, Chlorella vulgaris, in addition to the other available treatments. This study provided insight into the effectiveness of chlorella. Patients and Methods: Chlorella vulgaris was prescribed in addition to the other available chemical drugs for 8 weeks to a group of patients, and its effects on the clinical symptoms, general appearance, and spirometry indices were studied. Because increase confidence outcome of study the other group spot as control group. These two groups assimilate from all aspects. Results: This study showed that Algomed improves cough, sputum, dyspnea and lung auscultation findings. Therefore, the evaluation of spirometry indices showed improvement in FEV 1 and FVC. Conclusions: We conclude that Chlorella vulgaris is effective for treating silicosis. However, due to the limited number of patients and the short duration of the study, longer time periods and an increased number of patients are required for more definitive results.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Positive Effect of Chlorella vulgaris Complementary Therapy on the Symptoms and Pulmonary Function in Patients With Silicosis

et al. 2015

View full text Add to dashboard Cite

show abstract

“…These methods are used to collect PM with different dimensions (> 16 µm ÷ 0.5-0.25 µm). The determination of the mass, chemical, and mineral compositions of PM provides information on the concentrations of the elements in the air and the forms of their occurrence [13][14][15][16][17][18], which allows the assessment of the toxicity and bioavailability of aerosols [12,[19][20]. The migration of metals in the air as part of both ne and ultra ne aerosol particles is considered the main mechanism of air pollution in regions affected by abandoned mine tailings [21,22].…”

Section: Introductionmentioning

confidence: 99%

Evidence of element volatility at ambient conditions

Yurkevich

Бортникова

Kozlov

et al. 2021

Preprint

View full text Add to dashboard Cite

Tailings represent a significant risk to the environment globally, but very little is known about the composition of the near-surface air. We conducted the laboratory experiments to determine the sizes of the particles and the chemical composition of the flow above the mine waste. A condensate of vapor–gas flow was collected in parallel with particle control by an aerosol diffusion spectrometer (ADS). We reveal that there were no aerosol particles bigger than 3 nm in the flow. The collected condensate contained chemical elements, ions of sulfates, chlorides, phosphates, and formates and a wide range of sulfur-, selenium-, and carbon-containing gases. The main findings of the study are the presence of the metals Zn, Cu, Fe, Al, Cd, Ni, and Ba and the metalloids As, Sb, Se, Ag, Co, Ti, and V in the true-gas phase or in the form of particles smaller than 3 nm in the air above the mine tailings. The surprising fact is that the migration of metals and metalloids in a true-gas form or in ultrafine particles (< 3 nm) is possible, which opens up a new research direction on the volatile forms of chemical elements in various climatic conditions and their bioavailability and toxicity.

show abstract

“…(2003), fine and ultrafine PM are produced by combustion that include motor vehicles and power plants, whereas PM 10 are generated by mechanical processes that produce fugitive dusts from non-combustive sources. Kumari et al. (2011) noted that all production oriented mining operations such as cutting, breaking, crushing, drilling, grinding or abrasive blasting contribute to fine PM generation, while tailings dump sites are responsible for the emission of coarse PM.…”

Section: Introductionmentioning

confidence: 99%

Preliminary review of mine air pollution in Zambia

Mwaanga

Silondwa

Kasali

et al. 2019

Heliyon

View full text Add to dashboard Cite

Zambia is endowed with mineral wealth that includes copper, cobalt, gold, nickel, lead, silver, uranium, zinc, and numerous precious and semi-precious stones. Mining activities are predominantly found on the Copperbelt and North-Western Provinces, although these minerals are dotted all over the country. Copper mining in Zambia dates back to the 1900s and this period witnessed massive investment in mine development with concomitant increase in support facilities including building of new towns, roads and other commercial infrastructure. The mining sector has therefore evoked considerable national attention for its potential to contribute towards economic growth, job creation and poverty alleviation. However, mining and mineral processing by its very nature comes with environmental costs and the effects can continue long after the mining has stopped. The aim of this article was to review the relevant publications on the impacts of air pollution arising from mining operations with respect to human health, plants, animals and infrastructure and synthesize the views of researchers and suggest any additional research required to inform policy and remedial actions. This review has revealed that there is a paucity of studies on mining-related air pollution in Zambia. The main identified air pollutants were SO2 and particulate matter (PM), both fine and ultrafine (PM10, PM5.0, PM2.5 and PM0.1). The main sources of these pollutants were flue gases from smelter operations and dusts within the mines and those blown from both operational and abandoned waste rock, overburden and tailings dump sites. The identified occupational diseases for miners in Zambia were silicosis and tuberculosis, which have been compounded by the prevalence of HIV/AIDS. In the hotspot townships of air-borne exposures from smelter emissions in Mufulira, ambient air SO2 levels exceeded the ‘safe’ limits of international and National standards. Moreover, the top soils have turned acidic and have become laden with heavy metals (Pb, Zn, Cu, Co and Fe). These metals were also found in the dust deposited on leaves of crops. There were also visual signs of impaired vegetation cover and corroded housing infrastructure in the affected areas. In the vicinity of the abandoned Pb–Zn mine in Kabwe, the soils have been contaminated by heavy metals and pathological lead poisoning of children and wild mammals have occurred. The review article has further examined study gaps and suggested areas that need further research in order to address the challenges arising from the legacy of copper mining in Zambia. These include comprehensive PM characterization from mining environments, extent of occupation exposure to air pollutants, efficiency and efficacy of airborne control technologies, health risks and epidemiological studies in mining towns, and the influence of exposure to PM on pulmonary tuberculosis and HIV/aids among miners.

show abstract

Determination of Quartz and Its Abundance in Respirable Airborne Dust in Both Coal and Metal Mines in India

Cited by 13 publications

References 5 publications

Positive Effect of Chlorella vulgaris Complementary Therapy on the Symptoms and Pulmonary Function in Patients With Silicosis

Positive Effect of Chlorella vulgaris Complementary Therapy on the Symptoms and Pulmonary Function in Patients With Silicosis

Evidence of element volatility at ambient conditions

Preliminary review of mine air pollution in Zambia

Contact Info

Product

Resources

About