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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/22633

Title: Recent versus chronic exposure to particulate matter air pollution in association with neurobehavioral performance in a panel study of primary schoolchildren.
Authors: Saenen, Nelly
Provost, Eline B.
Viaene, Mineke K.
Vanpoucke, Charlotte
Lefebvre, Wouter
Vrijens, Karen
Roels, Harry
Nawrot, Tim S.
Issue Date: 2016
Citation: ENVIRONMENT INTERNATIONAL, 95, p. 112-119
Abstract: Children's neuropsychological abilities are in a developmental stage. Recent air pollution exposure and neurobehavioralperformance are scarcely studied. In a panel study, we repeatedly administered to each child the followingneurobehavioral tests: Stroop Test (selective attention) and Continuous Performance Test (sustainedattention), Digit Span Forward and Backward Tests (short-term memory), and Digit-Symbol and Pattern ComparisonTests (visual information processing speed). At school, recent inside classroom particulate matter ≤2.5or 10 μm exposure (PM2.5, PM10) was monitored on each examination day. At the child's residence, recent(same day up to 2 days before) and chronic (365 days before examination) exposures to PM2.5, PM10 and blackcarbon (BC) were modeled. Repeated neurobehavioral test performances (n = 894) of the children (n = 310)reflected slower Stroop Test (p = 0.05) and Digit-Symbol Test (p = 0.01) performances with increasing recentinside classroom PM2.5 exposure. An interquartile range (IQR) increment in recent residential outdoor PM2.5 exposurewas associated with an increase in average latency of 0.087 s (SE: ±0.034; p = 0.01) in the Pattern ComparisonTest. Regarding chronic exposure at residence, an IQR increment of PM2.5 exposure was associated withslower performances in the Continuous Performance (9.45 ± 3.47 msec; p = 0.007) and Stroop Tests (59.9 ±26.5 msec; p = 0.02). Similar results were obtained for PM10 exposure. In essence, we showed differential neurobehavioralchanges robustly and adversely associated with recent or chronic ambient exposure to PM air pollutionat residence, i.e., with recent exposure for visual information processing speed (Pattern Comparison Test)and with chronic exposure for sustained and selective attention
Notes: Nawrot, TS (reprint author), Hasselt Univ, Ctr Environm Sci, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium. tim.nawrot@uhasselt.be
URI: http://hdl.handle.net/1942/22633
DOI: 10.1016/j.envint.2016.07.014
ISI #: 000384789500013
ISSN: 0160-4120
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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