• Crystalline Silica Exposure

    Crystalline silica is a basic component of soil, sand, granite, and many other minerals. Quartz is the most common form of crystalline silica. Cristobalite and tridymite are two other forms of crystalline silica. All three forms may become respirable size particles when workers chip, cut, drill, or ...

  • Two Cases of Lung Cancer in Foundry Workers | Annals of ...

    Andersson L, Bryngelsson IL, Ohlson CG, Naystrom P, Lilja BG, Westberg H: Quartz and dust exposure in Swedish iron foundries. J Occup Environ Hyg 2009, 6: 9–18. 10.1080/15459620802649482. Article CAS PubMed Google Scholar

  • Temporal trends in respirable dust and respirable quartz ...

    Objectives Since 2000 the European Industrial Minerals Association’s Dust Monitoring Programme (IMA-DMP) has systematically collected respirable dust and respirable quartz measurements from 35 companies producing industrial minerals. The IMA-DMP initiative allowed for estimating overall temporal trends in exposure concentrations for the years 2002–2016 and for presenting these trends by ...

  • Airway inflammation in iron ore miners exposed to dust and ...

    The aim of the present study was to investigate if underground miners exposed to dust and diesel exhaust in an iron ore mine would show signs of airway inflammation as reflected in induced sputum. In total, 22 miners were studied, once after a holiday of at least 2 weeks and the second time after 3 months of regular work. Control subjects were 21 “white-collar” workers.

  • chemical agents and related occupations

    Earlier exposure studies have been reviewed previously (IARC, 1984). More recent studies are presented here and summarized in . Table 1.1. 1.2.1 . Respirable dust and respirable quartz . Nearly all production workers in iron and steel foundries are exposed to silica dust and other mineral constituents of foundry sand (IARC, 1984).

  • Silica dust and sarcoidosis in Swedish construction ...

    A few studies of a possible relationship between exposure to silica dust and sarcoidosis show conflicting results . We designed a longitudinal cohort study to investigate if silica dust exposure was a risk factor for sarcoidosis. Methods. This is a longitudinal cohort study using data from The Swedish Construction Workers Cohort [9, 10 ...

  • Quartz Dust Exposure Affects NLRP3 Inflammasome Activation ...

    Purpose: To study the association between inhalation of particulate matter or quartz in Swedish iron foundries and the effects on NLRP3 inflammasome activation. Methods: Particle exposure measurements were performed during an eight-hour work day for 85 foundry workers at three Swedish iron foundries. Personal sampling was used for measurement of respirable quartz and dust and …

  • Comparison of Risk of Silicosis in Metal Mines and Pottery ...

    Apr 13, 2020· The risk of silicosis in metal miners is higher than that in pottery workers when exposed to the same level of silica dust. The silica dust exposed years should be under 10 years for metal miners and 40 years for pottery workers at 0.05 mg/m3 to keep lifetime risk within 0.1%. Current exposure limits should take into account differences in various industrial circumstances.

  • Asbestos‐related x‐ray changes in foundry workers ...

    Lena Andersson, Ing-Liss Bryngelsson, Yen Ngo, Carl-Göran Ohlson and Håkan Westberg, Exposure Assessment and Modeling of Quartz in Swedish Iron Foundries for a Nested Case-Control Study on Lung Cancer, Journal of Occupational and Environmental Hygiene, 9, 2, (110), (2012).

  • Occupational exposure to inorganic dust and risk of gout ...

    Background Risk factors operating independently of hyperuricemia could be of importance in determining why only a minority of people with hyperuricemia develop gout. Exposure to inorganic dust has been linked to other inflammatory diseases and could influence the development of gout. Objectives To evaluate if occupational exposure to inorganic dust increases the risk of gout.

  • Controlling dust exposures in the Queensland foundry ...

    The major part of the program’s focus was a targeted assessment of worker exposure to respirable dust and RCS of workers who worked in similar foundry work groups, such as moulders, fettlers etc (these are referred to as similarly exposed groups (SEGs)). Day shifts were monitored in all 12 workplaces, with one part-evening shift in one foundry.

  • MSDS - MATERIAL SAFETY DATA SHEET

    Crystalline Silica (quartz) SiO2 99.0 - 99.9 14808-60-7 Aluminum Oxide Al2O3 < .8 1344-28-1 Iron Oxide Fe2O3 < .1 1309-37-1 Titanium Oxide TiO2 < .1 13463-67-7 Inhalation: No specific first-aid is necessary since the adverse health effects associated with exposure to crystalline silica (quartz…

  • Research Article

    Quartz is a term often used to refer to crystalline silica dust. ... silica dust exposure levels among U.S. workers, b) ... (SIC 1741) and “gray iron foundry” (SIC 3321) with exposure levels above ACGIH TLV of 0.05 mg/m3 were selected (Dear 1996). Using 1997 county business patterns

  • Epidemiological Adaptation of Quartz Exposure Modeling in ...

    Jun 18, 2010· In a recent cohort study in aluminum foundries and remelting plants an unexpectedly high risk of lung cancer was found in workers in sand foundries. On the basis of present and historical measurement data, we developed a statistical model for exposure to total dust and crystalline quartz for different jobs and time periods. Cumulative dose estimates of total dust and crystalline quartz were ...

  • OCCUPATIONAL EXPOSURES DURING IRON AND STEEL …

    1.2.1 Respirable dust and respirable quartz Nearly all production workers in iron and steel foundries are exposed to silica dust and other mineral constituents of foundry sand (IARC, 1984). In a study from Sweden, the ‘furnace and ladle repair workers’ and fettlers were the highest exposed individuals. For the

  • (PDF) Quartz and Dust Exposure in Swedish Iron Foundries

    Exposure to respirable quartz continues to be a major concern in the Swedish iron foundry industry. Recommendations for reducing the European occupational exposure limit (EU-OEL) to …

  • FOUNDRY HEALTH HAZARDS - Safe Work Australia

    Foundry health hazards 7 silica dust as unscreened sand, and pure quartz sand is more hazardous than olivine sand. Formation of scar tissue, due to dust inhalation, interferes with lung function. Conditions such as tuberculosis and bronchitis may be complications of silicosis.

  • Association of years of occupational quartz exposure with ...

    quartz; occupational exposure; smoking; The area of western Norway consists mainly of mountains that are rich in quartz minerals with an average of up to 30% quartz in rock.1 Crystalline silica is the most abundant element in quartz. In 1985 occupational quartz exposure was reported on self administered questionnaires by 9% of all men aged 30–49 years living in this area.2 The main ...

  • Cancer morbidity and quartz exposure in Swedish iron ...

    Objectives The aim of this study was to determine cancer morbidity for Swedish iron foundry workers with special reference to quartz exposure. Methods The cohort of 3 045 men employed between 1913 and 2005 and with >1 year of exposure was followed for cancer morbidity from 1958 to 2004. Standardised incidence ratios (SIRs) with 95% CIs were determined by comparing the observed …

  • Exposure Assessment and Modeling of Quartz in Swedish Iron ...

    Exposure assessment of quartz in Swedish iron foundries was performed based on historical and current measurement data. To evaluate the exposure-response relationship between quartz exposure and lung cancer, we modeled quartz exposure from our database of measurements using determinants job title, time period, and company. Based on these modeled exposure data, we conducted a nested …

  • Quartz in Swedish iron foundries : exposure and cancer risk

    2009 (English) In: Journal of Occupational and Environmental Hygiene, ISSN 1545-9624, E-ISSN 1545-9632, Vol. 6, no 1, p. 9-18 Article in journal (Refereed) Published Abstract [en] Exposure to respirable quartz continues to be a major concern in the Swedish iron foundry industry. Recommendations for reducing the European occupational exposure limit (EU-OEL) to 0.05 mg/m 3 and the corresponding ...

  • (PDF) Cancer morbidity and quartz exposure in Swedish iron ...

    Purpose: The aim of this study was to determine cancer morbidity amongst Swedish iron foundry workers with special reference to quartz exposure. In addition to respirable dust and quartz, phenol ...

  • Risk of sarcoidosis and seropositive rheumatoid arthritis ...

    Objective To study the impact of occupational silica exposure on the incidence rates of sarcoidosis and rheumatoid arthritis (RA) in a cohort of exposed workers in Swedish iron foundries. Design The prevalence of sarcoidosis and RA in a cohort of silica exposed workers was compared with the prevalence in the general Swedish population in this register study. A mixed model was used to …

  • Exposures to wood dust in U.S. industries and occupations ...

    Abstract Background: We analyzed 1,632 measurements of airborne wood dust reported to OSHA's Integrated Management Information System in the period …

  • Occupational exposure to silica dust and risk of lung ...

    Nov 04, 2016· Crystalline silica is considered as one of the most common and serious occupational hazards to workers’ health. Although its association with lung cancer has been studied for many decades, the conclusion remains somewhat controversial. Our objectives are to review and summarize the epidemiological evidence on the relationship between occupational silica exposure and risk of lung …

  • Occupational Diseases: Links to Abstracts in PubMed

    Quartz and dust exposure in Swedish iron foundries. Quantitative crystalline silica exposure assessment for a historical cohort epidemiologic study in the German porcelain industry. Respirable crystalline silica exposure-response evaluation of silicosis morbidity and lung cancer mortality in the German porcelain industry cohort.

  • Cancer morbidity and quartz exposure in Swedish iron foundries

    May 22, 2012· The aim of this study was to determine cancer morbidity amongst Swedish iron foundry workers with special reference to quartz exposure. In addition to respirable dust and quartz, phenol, formaldehyde, furfuryl alcohols, polycyclic aromatic hydrocarbons (PAHs), carbon black, isocyanates and asbestos are used or generated by foundry production techniques and exposure to any of these …

  • HHE Report No. HETA-90-0249-2381, Blaw Knox Rolls, Inc ...

    foundry is exposure to free crystalline silica. To summarize, 22 (42%) of all (personal and area) samples collected exceeded the NIOSH Recommended Exposure Level (REL) of 50 :g/m3 for respirable quartz and 13 (23%) exceeded the OSHA Permissible Exposure Limit (PEL) of 100:g/m3. It was also determined that a health hazard exists from employee ...

  • www.healthandenvironment.org

    Foundries Glass, fiberglass Iron, steel mills Jewelry Metal Mining, milling Paint Ouarrying, milling ... exposed to dust > 20% quartz 5 (9%) exposed to dust <5% quartz Overall: OR 10.4 (6.1-17.8) ... Case—control studies of silica dust exposure, scleroderma, and autoimmune diseases with …

  • Occupational Exposure to Respirable Crystalline Silica ...

    Chinese iron and steel workers 144 I.C.2.v. Swedish aluminum foundry workers 144 I.C.2.w. Norwegian silica carbide workers 145 ... OSHA currently enforces an occupational exposure limit for respirable dust that contains quartz, as well as for respirable dust that contains crystobalite or ... Consequently, workers are exposed to quartz ...

  • Quartz and dust exposure in Swedish iron foundries.

    Exposure to respirable quartz continues to be a major concern in the Swedish iron foundry industry. Recommendations for reducing the European occupational exposure limit (EU-OEL) to 0.05 mg/m3 and the corresponding ACGIH(R) threshold limit value (ACGIH-TLV) to 0.025 mg/m3 prompted this exposure …

  • Quartz in Swedish iron foundries – exposure and cancer risk

    Exposure assessment and modeling of quartz in Swedish iron foundries for a nested case-control study on lung cancer. J Occup Environ Hyg, ac-cepted for publication. IV. Andersson L, Burdorf A, Bryngelsson IL, Westberg H. (2011) Estimating trends in quartz exposure in Swedish iron foundries – predicting past and present exposure.

  • Occupational Exposure to Crystalline Silica Dust in the ...

    Mar 01, 2005· The purposes of this study were a) to summarize measurements of airborne (respirable) crystalline silica dust exposure levels among U.S. workers, b) to provide an update of the 1990 Stewart and Rice report on airborne silica exposure levels in high-risk industries and occupations with data for the time period 1988–2003, c) to estimate the number of workers potentially exposed to silica in ...

  • Respirable quartz: Number of samples, geometric mean ...

    ‡ The MSHA respirable coal mine quartz exposure data and the NISOH REL for respirable quartz cannot be compared to each other because they are based on difference sampling criteria. NOTE: Before March 1, 1989 and after March 22, 1993, the OSHA PEL is [(10 mg/m3) /(% quartz + 2)], for respirable dust containing at least 1 percent quartz.

  • Dust exposure and cardiovascular disease mortality in ...

    PM exposure at Swedish iron foundries 2 1.4. Swedish foundry industry 2 1.5. PM and iron foundries 3 2. Objective 4 ... (e.g. iron) [11]. Inorganic dust and quartz is among the substances that can be found in the PM of an iron or steel foundry. The PM is classified into three different fractions depending on their size and where they deposit