Seasonal characteristics of indoor and outdoor fine particles and their metallic compositions in Nanjing, China

2018 ◽  
Vol 137 ◽  
pp. 118-126 ◽  
Author(s):  
Daniel Bi ◽  
Yanyan Qiu ◽  
Haoran Cheng ◽  
Qi Zhou ◽  
Xingyu Liu ◽  
...  
Keyword(s):  
Fine Particles ◽  
Seasonal Characteristics ◽  
Indoor And Outdoor

scholarly journals Occupational Exposure to Fine Particulate Matter (PM4 and PM2.5) during Hand-Made Cookware Operation: Personal, Indoor and Outdoor Levels

2020 ◽  
Vol 17 (20) ◽  
pp. 7522
Author(s):  
Busisiwe Shezi ◽  
Angela Mathee ◽  
Nokulunga Cele ◽  
Sipho Ndabandaba ◽  
Renee A. Street
Keyword(s):  
Particulate Matter ◽  
Occupational Exposure ◽  
Fine Particles ◽  
Fine Particulate Matter ◽  
Health And Safety ◽  
Chemical Characterization ◽  
Personal Exposure ◽  
Targeted Prevention ◽  
Fine Particulate ◽  
Indoor And Outdoor

(1) Exposure of informal artisanal cookware makers to fine particles has not yet been characterized. The aim of this study was to characterize occupational exposure to fine particulate matter (PM4 and PM2.5) levels and fine particulate matter (PM2.5) elemental components; (2) Artisanal cookware makers were recruited from five cookware making sites. Exposure to fine particulate matter was measured for 17 male participants. SidePak personal aerosol monitors (AM520) were used to measure personal exposure to PM4, while a DustTrak monitor and an E-sampler were used to assess indoor and outdoor PM2.5 levels, respectively. A questionnaire was administered to capture information on demographic characteristics. The chemical characterization of indoor and outdoor PM2.5 filter mass was conducted using Wavelength Dispersive X-ray Fluorescence. Time series record of 15-min averages for indoor and outdoor PM2.5 levels were assessed; (3) The median (range) was 124 µg/m3 (23−100,000), 64 µg/m3 (1−6097) and 12 µg/m3 (4−1178), respectively, for personal PM4, indoor and outdoor PM2.5. The highest levels for many of the elemental components of PM2.5 were found in the outdoor PM2.5 filter mass and (4). The information generated during this study may assist in extending occupational health and safety strategies to artisanal cookware makers and developing targeted prevention initiatives.

scholarly journals Acute and Cumulative Effects of Haze Fine Particles on Mortality and the Seasonal Characteristics in Beijing, China, 2005–2013: A Time-Stratified Case-Crossover Study

2019 ◽  
Vol 16 (13) ◽  
pp. 2383 ◽  
Author(s):  
Li ◽  
Zheng ◽  
Ma ◽  
Quan
Keyword(s):  
Cardiovascular Mortality ◽  
Fine Particles ◽  
Seasonal Pattern ◽  
Cumulative Effects ◽  
Diameter Distribution ◽  
Respiratory Mortality ◽  
Case Crossover ◽  
Seasonal Characteristics ◽  
All Cause Mortality ◽  
Lag Structure

We observed significant effects of particulate matter (PM2.5) on cause-specific mortality by applying a time-stratified case-crossover and lag-structure designs in Beijing over a nine-year study period (2005–2013). The year-round odds ratio (OR) was 1.005 on the current day with a 10 μg/m3 increase in PM2.5 for all-cause mortality. For cardiovascular mortality and stroke, the ORs were 1.007 and 1.008 on the current day, respectively. Meanwhile, during a lag of six days, the cumulative effects of haze on relative risk of mortality, respiratory mortality and all-cause mortality was in the range of 2~11%. Moreover, we found a significant seasonal pattern in the associations for respiratory mortality: significant associations were observed in spring and fall, while for all-cause mortality, cardiovascular mortality, cardiac and stroke, significant associations were observed in winter. Moreover, increasing temperature would decrease risks of mortalities in winter taking fall as the reference season. We concluded that in summer, temperature acted as a direct enhancer of air pollutants; while in winter and spring, it was an index of the diameter distribution and composition of fine particles.

Indoor and outdoor concentrations of fine particles, particle-bound PAHs and volatile organic compounds in Kaunas, Lithuania

2011 ◽  
Vol 13 (1) ◽  
pp. 182-191 ◽  
Author(s):  
Linas Kliucininkas ◽  
Dainius Martuzevicius ◽  
Edvinas Krugly ◽  
Tadas Prasauskas ◽  
Violeta Kauneliene ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Fine Particles ◽  
Volatile Organic ◽  
Indoor And Outdoor

scholarly journals Exposure to fine particles (PM2.5 and PM1) and black smoke in the general population: personal, indoor, and outdoor levels

2007 ◽  
Vol 17 (7) ◽  
pp. 613-624 ◽  
Author(s):  
Sandra Johannesson ◽  
Pernilla Gustafson ◽  
Peter Molnár ◽  
Lars Barregard ◽  
Gerd Sällsten
Keyword(s):  
General Population ◽  
Fine Particles ◽  
Black Smoke ◽  
Indoor And Outdoor

scholarly journals INDOOR AND OUTDOOR RELATIONSHIPS OF PARTICLE WITH DIFFERENT SIZES IN AN APARTMENT IN HANOI: MASS CONCENTRATION AND RESPIRATORY DOSE ESTIMATION

2020 ◽  
Vol 58 (6) ◽  
pp. 736
Author(s):  
VO THI LE Ha
Keyword(s):  
Fine Particles ◽  
Influencing Factor ◽  
Age Group ◽  
Strong Correlations ◽  
Dose Estimation ◽  
Inhalation Dose ◽  
Adverse Health Effects ◽  
Size Characterization ◽  
Pm2.5 And Pm10 ◽  
Indoor And Outdoor

This paper presents data on the size characterization concentration of PM0.1, PM0.5, PM1, PM2.5, PM10, TSP in indoor and outdoor air of a residential apartment in two seasons (winter and summer) in Hanoi, Vietnam. These particles with different sizes were taken by 5 stage impactors (Nano sampler 3182, KINOMAX). Daily average concentrations of coarse particles (PM10) and fine particles (PM2.5) indoors and outdoors exceeded the WHO recommended values. In winter, the concentrations of PM0.5, PM1, PM2.5 and PM10, TSP are higher than in summer. However, concentrations of PM0.1 (NP) remains negligible change between two seasons. The indoor NP accounts about 17% and 8 % of fine particle (PM2.5) and 12 % and 7% of coarse particle (PM10) in winter and summer, respectively.  The indoor fraction for small sizes (NP, PM0.5, PM1 and PM2.5) have better infiltration than coarse sizes (PM10  and TSP), except for NP in summer. Moderate correlation between wind speed  (Ws) and PM concentration are found, whereas precipitation (Pr), Relative humidity (RH) and temperature (T) correlate with concentration with different sizes are determined. Strong correlations between particles with different sizes are also found in indoors and outdoors (r = 0.73-0.98). Household activities like cooking, cleaning and vacuum cleaner are attributed to elevate the indoor NP. The Monte Carlo simulation shows that highest estimated dose is observed in the age group (over 60 years) and age group (0-3 years) suffers the lowest dose, which has implications in the adverse health effects for sensitive groups. Sensitive analysis find the concentration of particles to be the most influencing factor on inhalation dose estimation.

Personal Exposure to Fine Particles and Benzo[A]pyrene. Relation with Indoor and Outdoor Concentrations of these Pollutants in Kraków

2007 ◽  
Vol 20 (4) ◽  
Author(s):  
Wiesław Jędrychowski ◽  
Agnieszka Pac ◽  
Hyunok Choi ◽  
Ryszard Jacek ◽  
Elżbieta Sochacka-Tatara ◽  
...  
Keyword(s):  
Fine Particles ◽  
Personal Exposure ◽  
Indoor And Outdoor

scholarly journals Seasonal Characteristics of the Chemical Composition of Fine Particles in Residences of Nanjing, China

2019 ◽  
Vol 16 (6) ◽  
pp. 1066 ◽  
Author(s):  
Guozhi Cao ◽  
Jun Bi ◽  
Zongwei Ma ◽  
Zhijuan Shao ◽  
Jinnan Wang
Keyword(s):  
Chemical Composition ◽  
Seasonal Variations ◽  
Fine Particles ◽  
Seasonal Pattern ◽  
Fine Particulate Matter ◽  
Cumulative Effect ◽  
Water Soluble ◽  
Metallic Elements ◽  
Noncarcinogenic Risk ◽  
Indoor And Outdoor

Indoor fine particulate matter (PM2.5) and its chemical composition is important for human exposure as people spend most of their time indoors. However, few studies have investigated the multiseasonal characteristics of indoor PM2.5 and its chemical composition in China. In this study, the chemical composition of PM2.5 samples in residences was analyzed over four seasons in Nanjing, China. Indoor water-soluble ions exhibited similar seasonal variations (winter > autumn > summer > spring) to those from outdoors (winter > autumn > spring > summer) except in summer. Whereas, indoor metallic elements exhibited a different seasonal pattern from that of outdoors. The highest concentrations of indoor metallic elements were observed in summer when the outdoor concentrations were low. The different seasonal variations of the chemical composition between indoor and outdoor PM2.5 indicated that people should consider both indoor and outdoor sources to reduce their exposure to air pollutants in different seasons. The carcinogenic risks for metallic elements were within the acceptable levels, while manganese (Mn) was found to have potential noncarcinogenic risk to humans. More attention should be paid to the pollution of Mn in the study area in the future. Moreover, the cumulative effect of noncarcinogenic PM2.5-bound elements should not be ignored.

Sign in / Sign up

Export Citation Format

Share Document