Effects of ambient particulate matter on peak expiratory flow rates and respiratory symptoms of asthmatics during Asian dust periods in Korea

  title={Effects of ambient particulate matter on peak expiratory flow rates and respiratory symptoms of asthmatics during Asian dust periods in Korea},
  author={Jeong-Woong Park and Young Hee Lim and Sun Young Kyung and Chang Hyeok An and Sang Pyo Lee and Seong Hwan Jeong and Young-Su Ju},
Objective:  Dust generating events frequently produce ambient dust particles that are less than 10 µm in diameter, and these have been linked to adverse effects in the general population. However, the evidence linking these particles to adverse effects on the airways of asthmatic individuals is limited. The objective of this study was to investigate the possible adverse effects of Asian dust events on the respiratory functions and symptoms of subjects with bronchial asthma. 

Particulate air pollution and impaired lung function

This review will focus on the effects of PM exposure on objective measurements of lung function in both healthy individuals and those with existing lung disease.

Acute Effects of Asian Dust Events on Respiratory Symptoms and Peak Expiratory Flow in Children with Mild Asthma

The results suggest that the short-term Asian dust events might be associated with increased acute respiratory symptoms and changes in PEF outcomes, however, there might be little long-term influence on airway hyperresponsiveness in children with mild asthma.

Effect of Asian dust on pulmonary function in adult asthma patients in western Japan: A panel study.

Impact of Air Pollution on Asthma Outcomes

Global measures, that aim to reduce exposure to air pollutants, are highly needed in order to improve the outcomes and management of adult and pediatric asthma in addition to the existing guidelines.

Association of Sand Dust Particles with Pulmonary Function and Respiratory Symptoms in Adult Patients with Asthma in Western Japan Using Light Detection and Ranging: A Panel Study

It is found that sand dust particles were significantly associated with worsened lower respiratory tract symptoms in adult patients with asthma, but not with pulmonary function.

Air pollution-related peak expiratory flow rates among asthmatic children in Chiang Mai, Thailand

The authors found that there were inverse associations of SO2 and evening PEFR, with a coefficient of -2.12, and the associations of O3 and SO2 with PEFR were found even when SO2 concentrations never exceeded the standard level.

Differences in the effects of Asian dust on pulmonary function between adult patients with asthma and those with asthma–chronic obstructive pulmonary disease overlap syndrome

The results suggest that the effects of AD exposure on pulmonary function differ between patients with asthma alone and ACOS, with the former exhibiting a greater likelihood of decreased pulmonary function after AD exposure.

Guideline for the prevention and management of particulate matter/yellow dust-induced adverse health effects on the patients with bronchial asthma

This study aimed to develop evidence-based practice guidelines and recommendations for pediatric or adult patients with asthma and for general physicians who care for asthmatic patients, in order to provide protection from adverse health effects of PM exposure.



Effects of air pollution on symptoms and peak expiratory flow measurements in subjects with obstructive airways disease.

Increases in environmental levels of ozone and sulphur dioxide are associated with adverse changes in peak flow measurements and both ocular and respiratory symptoms in subjects with obstructive airways disease, although the peak flow and symptom changes were modest.

Short-term effects of particulate air pollution on respiratory morbidity in asthmatic children.

A panel of children with mild asthma experienced small decreases in peak expiratory flow and increased dyspnoea in association with fine particles formed during air pollution episodes, some evidence was found that exposure to air pollution might have enhanced the respiratory symptoms while children were experiencing respiratory infections.

Effects of intermittent ozone exposure on peak expiratory flow and respiratory symptoms among asthmatic children in Mexico City.

It was concluded that children with mild asthma who resided in the south of Mexico City were affected adversely by the high ozone ambient levels observed in this area.

Respiratory effects of air pollution in chronic obstructive pulmonary disease: a three month prospective study.

Investigation of the relationship between air pollution levels and respiratory symptoms and peak expiratory flow rate in subjects with chronic obstructive pulmonary disease living in Christchurch, New Zealand indicates that adverse outcomes can be measured in response to pollution levels that are within current guidelines.

Acute effects of PM10 pollution on pulmonary function of smokers with mild to moderate chronic obstructive pulmonary disease.

It is concluded that in current smokers PM10 possibly has a small transient negative effect on lung function that is not entirely obscured by their smoking habit.

Mechanism of lung injury caused by PM10 and ultrafine particles with special reference to COPD

The current authors have demonstrated that ultrafine carbon black (ufCB) does not have its effects via transition metal-mediated mechanisms, however, ufCB and other ultrafines generate free radicals at their surface as measured by a number of chemical assays and are able to cause oxidative stress to cells and this is likely to be a factor in their ability to cause inflammation.

Lung function and long term exposure to air pollutants in Switzerland. Study on Air Pollution and Lung Diseases in Adults (SAPALDIA) Team.

Air pollution from fossil fuel combustion, which is the main source of air pollution with SO2, NO2, and PM10 in Switzerland, is associated with decrements in lung function parameters in this study.

Inhomogeneity in response to air pollution in European children (PEACE project).

The association between PEF and air pollution was positive in asthmatic children who used respiratory medication whereas the associations tended to be negative in children who did not use respiratory medication selected only on cough.