English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Residential air exchange rates ( AER s) are vital in understanding the temporal and spatial drivers of indoor air quality ( IAQ ). Several methods to quantify  AER s have been used in  IAQ  research, often with the assumption that the home is a single, well‐mixed air zone. Since 2005,  H ealth  C anada has conducted  IAQ  studies across  C anada in which  AER s were measured using the perfluorocarbon tracer ( PFT ) gas method. Emitters and detectors of a single  PFT  gas were placed on the main floor to estimate a single‐zone  AER  ( AER  1z ). In three of these studies, a second set of emitters and detectors were deployed in the basement or second floor in approximately 10% of homes for a two‐zone  AER  estimate ( AER  2z ). In total, 287 daily pairs of  AER  2z  and  AER  1z  estimates were made from 35 homes across three cities. In 87% of the cases,  AER  2z  was higher than  AER  1z . Overall, the  AER  1z  estimates underestimated  AER  2z  by approximately 16% ( IQR : 5–32%). This underestimate occurred in all cities and seasons and varied in magnitude seasonally, between homes, and daily, indicating that when measuring residential air exchange using a single  PFT  gas, the assumption of a single well‐mixed air zone very likely results in an under prediction of the  AER .

Estimation of bias with the single‐zone assumption in measurement of residential air exchange using the perfluorocarbon tracer gas method