Proposed ASHRAE Cabin Air Quality Standard (161P)

2008 ◽  
pp. 103-103-8
Author(s):  
LC Holcomb
Keyword(s):  
Air Quality ◽  
Quality Standard ◽  
Cabin Air Quality

scholarly journals Modeling of gasper-induced jet flow and its impact on cabin air quality

2016 ◽  
Vol 127 ◽  
pp. 700-713 ◽  
Author(s):  
Zhu Shi ◽  
Jun Chen ◽  
Ruoyu You ◽  
Chun Chen ◽  
Qingyan Chen
Keyword(s):  
Air Quality ◽  
Jet Flow ◽  
Cabin Air Quality

Connecticut's Dioxin Ambient Air Quality Standard

Risk Analysis ◽  
1990 ◽  
Vol 10 (4) ◽  
pp. 597-603 ◽  
Author(s):  
Hari V. Rao ◽  
David R. Brown
Keyword(s):  
Air Quality ◽  
Ambient Air ◽  
Quality Standard ◽  
Ambient Air Quality ◽  
Ambient Air Quality Standard

Can digital technology help reduce smoke exposure and protect health in extreme air quality events?

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S L Campbell ◽  
P J Jones ◽  
A J Wheeler ◽  
C Lucani ◽  
G J Williamson ◽  
...  
Keyword(s):  
Air Quality ◽  
Digital Technology ◽  
Online Survey ◽  
Quality Standard ◽  
Environmental Hazards ◽  
Smoke Exposure ◽  
Smartphone Apps ◽  
Individual Level ◽  
Health Authorities ◽  
Public Health Authorities

Abstract Background In the southern hemisphere summer of 2019-2020, Australia experienced its most severe bushfire season on record. Smoke from fires affected 80% of the population, with large exceedances of the Australian National Air Quality Standard for particulate air pollution recorded in all major population centres during this period. We examined if emerging and innovative digital technology can assist extreme smoke-affected populations to reduce their exposure and protect their health. Methods AirRater is a free smartphone app that tracks air quality and user symptoms in near real-time. We distributed an online survey to over 13,000 app users to assess how they used this information during the 2019-20 bushfire season, and if the app was helpful in decision-making around reducing personal smoke exposure. Results We received responses from 1732 users (13.3%). Respondents reported that the app was highly useful, supporting informed decisions regarding daily activities during the smoke-affected period. Commonly reported activities supported by information provided through the app were staying inside (76%), rescheduling or planning outdoor activities (64%), changing locations to less affected areas (29%) and informing decisions on medication use (15%). Conclusions Smartphone apps enable users to reduce smoke exposure and protect their health by providing individual-level and location-specific data. Furthermore, digital technology such as AirRater provides the potential to provide insight into the community impacts of environmental hazards such as bushfire smoke. Key messages Smartphone apps enable users to reduce their smoke exposure and protect their health. These emerging technologies can help public health authorities to understand the community impact of environmental hazards.

Vehicle Cabin Air Quality with Fractional Air Recirculation

2013 ◽  
Author(s):  
Michael L. Grady ◽  
Heejung Jung ◽  
Yong chul Kim ◽  
June Kyu Park ◽  
Bock Cheol Lee
Keyword(s):  
Air Quality ◽  
Vehicle Cabin ◽  
Cabin Air Quality

Passenger aircraft cabin air quality

2000 ◽  
Vol 7 (3) ◽  
pp. 173-174
Author(s):  
Martin B. Hocking
Keyword(s):  
Air Quality ◽  
Aircraft Cabin ◽  
Passenger Aircraft ◽  
Cabin Air Quality

scholarly journals Reducing Mobile Air Conditioner (MAC) Power Consumption Using Active Cabin-Air-Recirculation in A Plug-In Hybrid Electric Vehicle (PHEV)

2018 ◽  
Vol 9 (4) ◽  
pp. 51 ◽  
Author(s):  
Chengguo Li ◽  
Eli Brewer ◽  
Liem Pham ◽  
Heejung Jung
Keyword(s):  
Air Quality ◽  
Power Consumption ◽  
Electric Vehicle ◽  
Fuel Economy ◽  
Hybrid Electric Vehicle ◽  
Driving Cycle ◽  
Total Power ◽  
Air Conditioner ◽  
Hybrid Electric ◽  
Cabin Air Quality

Air conditioner power consumption accounts for a large fraction of the total power used by hybrid and electric vehicles. This study examined the effects of three different cabin air ventilation settings on mobile air conditioner (MAC) power consumption, such as fresh mode with air conditioner on (ACF), fresh mode with air conditioner off (ACO), and air recirculation mode with air conditioner on (ACR). Tests were carried out for both indoor chassis dynamometer and on-road tests using a 2012 Toyota Prius plug-in hybrid electric vehicle. Real-time power consumption and fuel economy were calculated from On-Board Diagnostic-II (OBD-II) data and compared with results from the carbon balance method. MAC consumed 28.4% of the total vehicle power in ACR mode when tested with the Supplemental Federal Test Procedure (SFTP) SC03 driving cycle on the dynamometer, which was 6.1% less than in ACF mode. On the other hand, ACR and ACF mode did not show significant differences for the less aggressive on-road tests. This is likely due to the significantly lower driving loads experienced in the local driving route compared to the SC03 driving cycle. On-road and SC03 test results suggested that more aggressive driving tends to magnify the effects of the vehicle HVAC (heating, ventilation, and air conditioning) system settings. ACR conditions improved relative fuel economy (or vehicle energy efficiency) to that of ACO conditions by ~20% and ~8% compared to ACF conditions for SC03 and on-road tests, respectively. Furthermore, vehicle cabin air quality was measured and analyzed for the on-road tests. ACR conditions significantly reduced in-cabin particle concentrations, in terms of aerosol diffusion charger signal, by 92% compared to outside ambient conditions. These results indicate that cabin air recirculation is a promising method to improve vehicle fuel economy and improve cabin air quality.

The Concentration Characteristics of PM10 and PM2.5 in Eight Cities of China in March, 2013

2013 ◽  
Vol 807-809 ◽  
pp. 20-23 ◽  
Author(s):  
Tao Sheng ◽  
Jian Wu Shi ◽  
Sen Lin Tian ◽  
Li Mei Bi ◽  
Hao Deng ◽  
...  
Keyword(s):  
Air Quality ◽  
Wind Speed ◽  
Relative Humidity ◽  
Negative Correlation ◽  
Ambient Air ◽  
Quality Standard ◽  
Meteorological Factor ◽  
Urban Air ◽  
Ambient Air Quality ◽  
Ambient Air Quality Standard

According to the information of air quality which published by the urban air quality real-time publishing platform, the concentration characteristics of PM10 and PM2.5 were studied in Kunming (KM), Changsha (CS), Hangzhou (HZ), Shanghai (SH), Harbin (HEB), Beijing (BJ), Wuhan (WH) and Guangzhou (GZ). The results show that the concentrations of PM10 and PM2.5 exceeded the Ambient Air Quality Standard (GB3095-2012) in varying degrees in March, 2013. The concentrations of PM10 in Wuhan is the highest, reached 164μg/m3, exceeded the standard by 9.3%; the concentrations of PM2.5 is much higher in Wuhan, Changsha and Beijing, the average concentrations were 96μg/m3, 103μg/m3 and 110μg/m3, exceeded the standard by 28.0%, 37.3% and 46.7% respectively. The correlation of PM10 with PM2.5 in most of these cities was good in March. The correlation analysis of pollutant with meteorological factor in Hangzhou, Shanghai, Beijing and Guangzhou was also studied, the results show that the concentrations of PM10 and PM2.5 are weakly positive correlation with temperature in the four cities, negative correlation with relative humidity without Beijing, and negative correlation with wind speed.

Indoor Air Quality Standard Setting-A Lesson in the Need for Objectivity 1

Risk Analysis ◽  
1995 ◽  
Vol 15 (1) ◽  
pp. 3-6
Author(s):  
Simon Turner
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Standard Setting ◽  
Quality Standard
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