نتایج جستجو برای: dust control
تعداد نتایج: 1368092 فیلتر نتایج به سال:
A majority of continuous mining machines employ a water spray system and a machine mounted flooded-bed scrubber to suppress and capture dust during coal mining. These machine mounted dust control systems must be designed to function within the localized face ventilation system at the mining section to control both dust and methane. Spray systems can impede or improve the scrubber effectiveness ...
Background and aims: Dust emission is one of the main health and environmental problems during the crushing, screening and conveying process in mining company. The goal of this study was designing, implementation and evaluation of industrial ventilation and combination with a water spray for control the airborne particles as well as economic analysis on crushing unit of a mining compa...
Background & Aim: Aflatoxin B1 (AFB1) acts as a genotoxic, cytotoxic, and a potential hepatocarcinogen agent. Any contact with aflatoxins is a main threat to workers in the waste management industry. On the other hand, just a few studies have investigated occupational exposure to mycotoxins in the aforementioned industry. In this study, the exposure level of workers to dust and AFB1 has been in...
Fugitive dust (dust composed of natural materials, suspended into the air by human activities) is an air quality concern in many agricultural regions of the United States. Fugitive dust is generated almost everywhere by vehicles traveling on unpaved or sediment-covered roads and at construction and waste management sites (Cowherd et al., 1988). In the Southern High Plains of Texas and the Colum...
Introduction: Nowadays, millions of people are exposed to the dusts in their workplaces. Occupational exposure to dusts is considered as one of the most common and serious occupational hazards to workers’ health. The purpose of this literature review was to review the literature related to the occupational exposure to dusts in Iran published over the past 14 years. Material and Methods: In t...
In the paper, the atmospheric conditions in the Persian Gulf region and southwest of Iran were studied by analyzing several case studies in cold and warm seasons. For this purpose, three case studies were selected from the dust events occurred between September and March and have been studied using meteorological stations data, satellite imagery, ECMWF global data, and HYSPLIT and DREAM outputs...
One of the major problems in recent years is the more dust storms occurrence in west regions of Iran in order to rising of the temperature and drought in the neighbored country (Iraq). In present investigation, effect of simulated dust storm on chlorophyll a fluorescence, chlorophyll content and phenol compounds surveyed in vitro in medicinal plan Thymus vulgaris. T. vulgaris is the aromatic me...
To help inform the setting of dust control standards in coalmines, this brief review summarises the most recent and reliable exposure-response relations, for damaging respiratory effects, derived from the Pneumoconiosis Field Research (PFR). Collecting data over 38 years in the British coal industry, this was a programme of prospective research on the respiratory health of coal miners, characte...
BACKGROUND Soil dust has been debated about its effects on public health and the challenge is brought about tuberculosis (TB). The purpose of this study was to investigate the influence of soil dust on pulmonary tuberculosis (PTB) prevalence and its control indices. METHODS The medical files of patients in Khuzestan Health Center were reviewed. The control group included the PTB patients regi...
Introduction: Prolonged use of licorice is known to cause headaches hypertension cardiac arrhythmias edema lethargy shortness of breath sodium retention and loss of potassium in healthy people. However to best of authors' knowledge to date the potential adverse health effects of occupational inhalation exposure to licorice dust have not been examined. This study was therefore under look to ad...
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