Background: Foundry workers are the backbone of many industries. Workers exposed to metal dust, fumes, various products combustion, chemical relating resin compounds, and physical factors such as noise, vibration, high temperature. In addition these factors, use tobacco, especially smoking, may aggravate health hazards, mainly respiratory morbidities. Objective: To know prevalence tobacco among...

The current cross-sectional study with a comparison group was undertaken to investigate peak expiratory flow rate (PEFR) in flour mill workers and to study relationship between reduction in PEFR and age, smoking, exposure to grain dust and respiratory morbidity. The study included 286 flour mill workers and equal number of neighbourhood controls group-matched for age. PEFR was measured by using...

OBJECTIVE To investigate the role of occupational and domestic exposure to dust in the aetiology of cryptogenic fibrosing alveolitis. DESIGN Matched case-control study. SUBJECTS 40 Patients with cryptogenic fibrosing alveolitis and 106 community controls matched for age and sex who responded to a questionnaire. MAIN OUTCOME MEASURE Responses to self administered questionnaire asking about...

Regular tobacco use in the enclosed environment of a car raises concerns about longer-term contamination of a car's microenvironment with residual secondhand smoke pollutants. This study (a) developed and compared methods to measure residual contamination of cars with secondhand smoke, (b) examined whether cars of smokers and nonsmokers were contaminated by secondhand smoke, and (c) how smoking...

Both environmental tobacco smoke and indoor allergens can exacerbate already established childhood albeit primarily through quite disparate mechanisms. In infancy and childhood, environmental tobacco smoke (ETS) exposure is associated with measures of decreased flow in the airways, bronchial hyperresponsiveness, and increased respiratory infections, but the relationship between ETS and allergy ...

Polycyclic aromatic hydrocarbons (PAHs) settled in floor dust play an important role in human health. Although many studies investigated occupational exposure to PAHs, no attempts have been made to report PAHs concentrations as well as their health risk assessment inside an educational building in Jordan. Therefore, the main objective of this study is to report the PAHs concentrations in floor ...

A sample of 2209 white South African gold miners aged 45-54 between 1968-71, who started mining exposure during 1936-43, was investigated from 1968-71 to 30 December 1986. The effect of silica dust and tobacco smoking on mortality from chronic obstructive lung disease (COLD) was assessed. The relative risk (RR) for dust exposure before 1950 was estimated as 2.5 (95% confidence interval (CI) 1.5...

The effect of occupational exposure to local powdered tobacco (snuff) on pulmonary function was studied. Snuff industry workers in Onitsha and Enugu markets were studied and compared with age, weight, and height-matched control not exposed to any known air pollutant. The pulmonary indices studied include forced vital capacity [FVC], forced expiratory volume in one second [FEV1] and ratio of FEV...

Abstract Dust prevention and control in the tobacco industry has always been top priority, because discharge of dust can cause workers’ pneumoconiosis, explosions, fires other safety hazards. This article summarizes advantages disadvantages traditional three kinds collectors. The author designed a in-situ purification system based on principle throttling gas-liquid exchange. experiment selects ...