Nanotoxicity of Occupational Dust Generated in Granite …

Abstract: The risk of occupational exposure to particles of granite exists during quarrying, saw milling and construction work environment. These particles are …

Option 3

The study was conducted to determine whether the local exhaust ventilation attachment was able to control respirable dust and respirable silica exposure below occupational exposure limits. Masonry grinding. 2005. Protecting Tuckpointing Workers from Silica Dust: Draft Recommendations for a Ventilated Grinder

Health risks associated with the grinding …

Introduction: Dust is one of the chemical substances that cause occupational disease, especially among stone crafters. Its deposition for a long period can lead to various health problems, hence ...

Occupational lung disease: when should I think of it and …

To diagnose occupational respiratory diseases, it is necessary to obtain a complete occupational history (jobs held since actively employed), with any associated exposure to chemicals, biological products, vapours, gases, dust and/or fumes, ascertaining as much as possible the intensity and the duration of the exposure.

Workers' Occupational Dust Exposure and Pulmonary …

Objective: This study aims to determine the occupational health status of workers exposed to dust and the risk factors of lung function decline, to provide a basis for formulating corresponding occupational disease-prevention strategies. Methods: Data on 2045 workers exposed to dust, including their age, gender, exposure time, chest X-ray …

Occupational injuries and risk assessment among stone

Exposure to excessive dust, working without personal protective equipment (PPE), and improper lifting and handling techniques caused one-third of injuries. Wrist …

Exposure to particles and respiratory symptoms …

occupational exposure to particulate dust has led to respiratory sym ptoms, radiographic abnormalities, and decreased lung function in stone carvers of Kerman. This study urges more surveillance …

Occupational exposure to dust and to fumes, work as a …

In that analysis, occupational exposure to fumes was no longer statistically associated with IPD or IPD with pneumonia. Occupational exposure to silica dust remained associated with increased risk for IPD (OR 1.35, 95% CI 1.12 to 1.61) and for IPD with pneumonia (OR 1.33, 95% CI 1.07 to 1.66).

Understanding the pathogenesis of occupational coal and silica dust

Occupational exposure limits. Dust exposure standards at workplaces are often stricter than environmental standards because of continuous dust generation and prolonged exposures in the former. Owing to their toxic potential, the OELs for RCS are regulated according to nationally determined standards (figure 4a). Most standards …

Association between Crystalline Silica Dust Exposure and …

1. Introduction. Occupational exposure to crystalline silica dust (SiO 2) has become one of the most common and serious hazards for artificial stone workers.According to recent studies, a large number of workers are exposed to this mineral dust throughout the world, with more than 3.2 million workers in Europe and more than …

Dust Exposure Of Stone Grindingmill

Exposure Of Stone Grindingmill. dust posure of stone grinding mill workers 18 IJBMRF Dr UMA R International Journal Of Exposure to industrial dust causes occupational airway 2 obstruction due to chronic irritation of airways Rice mill workers are continuously exposed to rice bran and husk dust and hence developing occupational lung diseases

Nanotoxicity of Occupational Dust Generated in Granite Stone Saw Mill

As were noticing Ahmad et al. (2011) [3], while studying the nanotoxicity of occupational dust generated in granite Saw Mill, the risk of occupational exposure to particles of granite exists when ...

Association between Occupational Exposure to Wood Dust …

Introduction. Dust generated in wood processing is one of the most common occupational and carcinogenic agents identified to date. The manipulation of wood can create fine and abundant dust with sanding, and thicker dust with milling or cutting [1,2,3].The location and accumulation of particles has been found to depend on the size, …

Jobs and Exposures That Increase Risk for Developing COPD …

Efforts to prevent COPD focus on limiting exposure to smoking. Occupational exposures are important causes of COPD, contributing to an estimated 14% of all cases and 31% of cases among never smokers. Workplace agents associated with COPD include: mineral dusts (coal mine dust, silica, asbestos), organic dusts (cotton, …

Effects of occupational exposures on respiratory health in …

Introduction. In steel industry, exposure to airborne contaminants is considered a risk factor for pulmonary diseases and for occurrence of pathological changes in airways (1, 2).Suspended metals, dust, and toxic gases in steelwork may increase the risk of respiratory symptoms related to diseases such as pneumoconiosis, bronchial …

id/23/prosedur pembersihan ball mill.md at main

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Respiratory health of stone grinders with free silica dust …

Eighty-five quartz mill stone-grinding workers belonging to the Naika, Rathwa and Damor tribes of Chhotaudepur village of the Godhra region of Gujarat, Western India were surveyed and examined to assess health effects related to free silica dust exposure. The mean age for the subjects was 28. …

Nanotoxicity of Occupational Dust Generated in Granite …

For experimentation occupational dust (OD), microdust 5-8 μm (MD) and nanodust 83±31nm (ND) were exposed to A549 for 72 hr to study cytotoxicity, oxidative …

Effects of high silica exposure on respiratory disorders among stone

Those cutting stone at the mines had the next highest GM (2.65 mg/m 3), while the lowest occupational exposure was seen among those chiseling stone(GM 0.9 mg/m 3). The occupational exposure to RCS ...

HAZARD WARNING: SILICA DUST FROM COUNTERTOP …

and grinding of stone surfaces. They were only 36 and 38 years old at the time they died. About 85% of their work was with engineered stone. CASE REPORTS Wet methods and local exhaust ventilation can reduce dust exposures Photo credit: National Institute for Occupational Safety and Health SEPTEMBER 2019 STONE % SILICA Engineered …

California Seeks to Minimize Stone Workers' Silica Dust Exposure

CDPH published resources for employers and workers to minimize exposure to silica dust when working with engineered stone during countertop fabrication. ... and has issued an occupational health alert ... Texas, and Washington since 2017. Most of the patients reported conducting tasks such as cutting and grinding engineered stone, while two ...

Occupational exposures to fibers and quartz at 19 crushed stone …

This study was undertaken in part to address concerns that asbestos exposures could be occurring in some crushed stone operations due to the presence of amphibole and serpentine minerals and to characterize exposures to crystalline silica and other mineral compounds. From 1979 to 1982, the National Institute for Occupational …

EPHB Report No. 2023-DFSE-1489

Characterization of Airborne Dust Generated from the Grinding of Natural and Engineered Stone Products Drew Thompson, PhD Chaolong Qi, PhD, PE Commander, U.S. Public Health Service Division of Field Studies and Engineering Engineering and Physical Hazards Branch EPHB Report No. 2023-DFSE-1489 October 2023

Case Report: Exposure to Respirable Crystalline Silica and …

During mechanical processes such as crushing, cutting, drilling, or grinding of natural stone, or man-made products that contain silica, workers generate silica dust commonly referred to as respirable crystalline silica (RCS) . Silica dust particles with size from 0.01 to 100 μm in diameter are a significant health concern .

Dust Control Handbook for Industrial Minerals Mining …

To receive documents or other information about occupational safety and health topics, contact NIOSH at Telephone: 1–800–CDC–INFO (1–800–232–4636) TTY: …

Occupational COPD—The most under‐recognized occupational …

In a North American study, the risk of COPD was 1.4 for occupational exposure to VGDF alone, 2.8 for smoking alone and 6.2 in those who were exposed at work and smokers. 93 In another study from Northern Europe, the risk of COPD associated with occupational exposure to VGDF was present only in smokers. 90 In other studies, …

Towards Sustainable Grinding of Difficult-to-Cut Alloys—A …

3.1 Development of Grinding Techniques. Grinding is the most commonly used technology in abrasive machining and one of the most critical technologies for precision manufacturing difficult-to-cut alloys such as superalloys [2, 15, 31] and titanium alloys [32, 33] with high strength.It is meaningful to study and improve the sustainability …

Engineering Controls Database

Grinding and pulverizing the ore is performed later in the mineral process to reduce the product down to the smaller size ranges, normally measured in mesh sizes. Grinding mills are used to perform this process and are cylindrical, horizontal drums that rotate and have rods, balls, or pebbles inside to grind the ore down to the desired size ranges.

Assessment of Occupational Dust and Silica …

Introduction. Metal and masonry stone, building material, etc play a vital role in urbanisation 1 and today's stone mining and crushing have become the backbone of infrastructure development in India. 2–4 …

Assessment of Occupational Dust and Silica Exposure in Indian Stone

Objective: To assess the impact of silicon dust on peak expiratory flow rate of stone crushers. Materials and methods: The total 125 male study accused age of 18 years and > considered, out of which 75 from stone crushers and 75 were from general population selected from Quetta district, Pakistan.

Assessment of Respiratory Health of Wood and Stone

The Dangers Of Stone Dust

Those who work with stone can experience serious disease and ill-health as a result of breathing in stone dust. Read more here. +44 (0) 1482 620400; info@stonegatetooling ... Stone dust can be an occupational hazard when cutting stone. Therefore it is essential to do this safely when cutting, drilling, polishing or …

Occupational Health, Safety and Ergonomic Concerns in …

Occupational health safety and ergonomic (OHS&E) concerns are most significant in many developing countries because the effect of poor health, employee safety, and non-ergonomic conditions exist ...

Occupational silica exposure and lung cancer risk: a review …

Background: In 1997, a Monograph from the International Agency for Research on Cancer (IARC) classified occupational exposure to crystalline silica as carcinogenic to humans. Large amounts of epidemiological data have been published subsequently.Methods: We conducted a systematic review of epidemiological investigations on silica exposure and …

Application of Multiple Occupational Health Risk …

Results: The mean exposure to total inhalable dust and crystalline silica among the stone carvers was 1.44 and 0.5 mg/m3, respectively. Exposure to total dust and silica was …

EPHB Report No. 2023-DFSE-1489