Association of short-term exposure to ground-level ozone and respiratory outpatient clinic visits in a rural location – Sublette County, Wyoming, 2008–2011

Abstract

The results demonstrate an association of increasing ground-level ozone with an increase in clinic visits for adverse respiratory-related effects in the following day (lag day 1) in Sublette County; the magnitude was strongest during the winter months; this association during the winter months in a rural location warrants further investigation.

Spatiotemporal Patterns of Ozone and Cardiovascular and Respiratory Disease Mortalities Due to Ozone in Shenzhen

“…Some other studies, using human volunteers, identified that exposure to ozone could cause adverse systemic inflammation and cardiac autonomic effects through changes in heart rate variability and C-reactive protein, and thus contribute to cardiovascular mortality [7,10]. Though the mechanism is not conclusive yet, elevated ozone concentration could lead to respiratory and cardiovascular diseases according to many epidemiological studies [2][3][4][32][33][34][35]. Our study came to a similar conclusion, with identified susceptible groups being the elderly and males.…”

An evaluation of hospital admission respiratory disease attributed to sulfur dioxide ambient concentration in Ahvaz from 2011 through 2013

“…The most important health effects of sulfur dioxide are classified into two classes; short-term effects are associated with maximum concentration of SO 2 and long-term impacts which are related to average concentration of sulfur dioxide. Breathing difficulty; hospital admission rates increase in children, elderly, and asthmatics; pulmonary edema; eye irritation; coughing; asthma attacks; increased risk of respiratory disease and respiratory infections; reduced lung function; and cardiovascular disease are the most important symptoms of short-and long-term effects of sulfur dioxide (Lave and Seskin 2013;Mraihi et al 2015;Norval et al 2011;PAGE 2003;Peng et al 2015;Pope et al 2002;Pride et al 2015;Raaschou-Nielsen et al 2013;Woerman 2013).…”

Application of factor and cluster analyses to determine source–receptor relationships of industrial volatile organic odor species in a dual-optical sensing system

“…., X p in any observation vector X, the mfactor model is calculated using the following Eqs. (1)-(4) (Rencher, 2002):…”

“…Factors with an eigenvalue greater than 1 were retained for varimax rotations and factor loading calculations. Factor loadings with absolute values greater than 0.4 were considered influential variables (Rencher, 2002); the higher the factor loading (> 0.4), the stronger the correlation between the variables (odor substances) and the factor (emission source). The combination of variables in each factor roughly represented the types or characteristics of each factor or source.…”

“…1), odor nuisances have been ranked as the leading cause of environmental nuisances in Taiwan (Taiwan Environmental Protection Agency, 2017). Volatile organic compounds (VOCs) are one of the factors contributing to odors and triggering various health problems, such as asthma, pneumonia, and bronchitis (Pride et al, 2015). VOCs are also a precursor to fine particulate matter in the atmosphere, aggravating photochemical smog conditions in urban areas (Hu et al, 2017;Jathar et al, 2014).…”