The principal airborne hazards in the mining industry include several types of particulates, naturally occurring gases, engine exhaust and some chemical vapours; the principal physical hazards are noise, segmental vibration, heat, changes in barometric pressure and ionizing radiation. These occur in varying combinations depending on the …

Clay minerals are the main cementing substances for sandy soils to form aggregates. The clay mineral attapulgite clay is abundant in Northwest China, and its special colloidal properties and crystal structure make it excellent in improving soil physicochemical properties. Using attapulgite as soil conditioner, the effects of different …

Land use changes modify soil properties, including aggregate structure, and thus, profoundly affect soil quality and health. However, the effects of land use changes originating from alpine grassland on soil aggregates and aggregate-associated organic carbon have received little attention. Soil aggregate fraction, aggregate-associated …

Environmental Impacts of Aggregate and Stone Mining in New Mexico. The results of his study showed that the primary environmental impacts from aggregate and stone mining in New Mexico are degraded air quality and associated health effects, resulting from airborne emissions from both the stack and the disturbed areas at these mines.

Methane emissions from coal mining are well studied and expected to reach approximately 784 Mt of CO 2-equivalent (CO 2 e) by 2030 1.However, since coal mining itself is being directly targeted in ...

The most recognized health hazards from these mines involve airborne particulate emissions. Total Suspended Particulates (TSPs) is a measure of all particulates emitted by a ... the cumulative effects of aggregate and stone mining, especially in urban areas, contribute to the overall degradation of the environment. In

The effect of the aggregates industry is both large and diverse. Sizable effects on employment and output are found also at the state and county levels. Production in the aggregates industry is closely linked to the construction and maintenance of residential, commercial, and government buildings, as well as transportation infrastructure ...

Based on a literature review, this article presents environmental impacts of the mining (also know as the extractive) industry. The article presents details of 11 main environmental impacts ...

Introduction. Sand and gravel are used extensively in construction. In the preparation of concrete, for each tonne of cement, the building industry needs about six to seven times more tonnes of sand and gravel (USGS, 2013b). Thus, the world's use of aggregates for concrete can be estimated at 25.9 billion to 29.6 billion tonnes a year for 2012 alone.

During the concrete mixing process, the transition of aggregates from a dry to a moist state introduces a crucial dynamic that significantly influences particle interaction, consequently impacting mixing homogeneity. In this paper, based on the discrete element method, the effect of aggregate moisture on the mixing process of sand and stone was …

This chapter describes the natural aggregate industry and methods to sustain aggregate resources. 9.2 Production of aggregate, 9.3 Substitutes and manufactured aggregates, 9.4 Extending aggregate availability through recycling, 9.5 Performance of aggregate in use, 9.6 Waste products from aggregate mining and processing describe …

Natural aggregate is essential to the facilities that produce energy—hydroelectric dams and coal-fired powerplants. Ironically, the utility created for mankind by the use of natural …

Some of the negative effects of aggregate mining or quarries is the modification of water sheds as the rocks or sediments are removed. ... This study demonstrates the negative health effects of ...

The impact of aggregate mining operation such as noise, dust, air quality, suspended particulate matter and gaseous emission poses serious environmental problem to both the inhabitant and the ...

The physiological effects of mine dusts Potential implications of mine dusts on human health are further divided into five categories namely; toxic dusts, carcinogenic (cancer causing) dusts; fibrogenic (silicosis causing) dusts; explosive dusts and nuisance dusts.2 Particles with the size of 500 - 1000µm get dislodged from the rock surface ...

Aggregate production is, by the strictest definition, non-sustainable, since aggregate resources are non-renewable. However, the term sustainability used in this context, can be used to characterize an aggregate production which is in an optimum balance with the geological resources used, as well as with the various kinds of physical …

Effect of length of residence in the municipality on perception. The length of residence (in percentage of life time) in the municipality had a significant effect on the perception of air pollution, landscape changes, and health effects (Table 4). The test pointed out that the longer the time living close to mining activities, the greater is ...

health and safety, farming obstacle, blockage on free movement of animals, displace - ment of communities, reduction in agricultural yield, damage of cultural sites, and the formation of mining villages [12]. Production activities in any industry may harm the environment through their damaging effects on air, water, soil, and biodiversity [13].

Aggregate and the environment. This book is designed to help you understand our aggregate resources-their importance, where they come from, how they …

In aggregate mining, the. target limestone, ... Mining effects on forest area of Mussoorie division. Int J Sci Res Dev:250– ... public health, biodiversity, and livelihoods. The findings ...

Industrial mining projects can play an important role in global sustainable development if associated health risks are minimised and opportunities maximised. While a broad body of evidence from …

The practice of extracting sediments is described in the Sub-Saharan African literature in a variety of ways. The most commonly used term 'sand mining' refers to the general process of extracting sand from its original location.Mining involves the removal of sand from the earth's surface such as beaches, dunes, or quarries (open pits for mineral …

Factors originating at the organizational, work, and individual levels are closely interrelated and intricately intertwined, affecting health rates. There was limited research on the interdependence and aggregate effects between multi-source factors and occupational health and well-being (OHW). It is challenging to achieve management goals.

Different soil aggregates have different protective effects on SOC. Macro-aggregates (MA) limit the diffusion of oxygen, water, and nutrients to inhibit microbial activity, thereby reducing the SOC decomposition rate, whereas micro-aggregates (MIA) store more recalcitrant carbon fractions and provide long-term SOC stabilization (Six et …

Coal, a nonrenewable source of energy, has been an important component of the world's energy structure for a very long time. It can be seen from Fig. 1 (a) and (b) that since 1971, total worldwide coal production and coal consumption has grown by more than 150%. According to the International Energy Agency, the proportion of coal in primary …

silica, and associated increased risk of silicosis, in coal mining. The main conclusions drawn from review of the new information are: 1. While findings published since 1995 refine or add further to the understand - ing of the respiratory health effects of coal mine dust described in the NIOSH

The production of mining waste exorbitantly surpasses that amount, being estimated at 700 Mton/year (European Innovation Partnership on Raw Materials and Raw Materials Scoreboard, 2018). The aggregate market on the other hand is estimated to require 2900 Mton/year of raw materials in the EU ((UEPG), 2018). On a volume basis, …

However, for erodible soils, the effects of soil aggregate stability on SOC and SON under land use change are not well known. ... Environ. Res. Public Health 2019, 16, 3809; doi:10.3390 ...

DOI: 10.13031/AEA.12829 Corpus ID: 115448241; Effects of the Stability of Reclaimed Soil Aggregates on Organic Carbon in Coal Mining Subsidence Areas @article{Qu2018EffectsOT, title={Effects of the Stability of Reclaimed Soil Aggregates on Organic Carbon in Coal Mining Subsidence Areas}, author={Junfeng Qu and Min Tan …

aggregate mining. Sand and gravel mining has been one of the serious environmental problems around the globe in recent years. ... degraded air quality and associated health effects,