Pat E. Rasmussen
University of Ottawa
Environmental chemistryContaminationAnalytical chemistryDetection limitSoil waterMass spectrometryInductively coupled plasma mass spectrometryChemistryParticle sizeMaterials scienceMineralogyParticulatesHydrologyEnvironmental scienceChromatographyExtraction (chemistry)ZincCadmiumMercury (element)Air pollutionDissolutionSampling (statistics)
115Publications
32H-index
3,204Citations
Publications 100
Newest
#2Ariadne Argyraki (UoA: National and Kapodistrian University of Athens)H-Index: 15
Last. Jane EntwistleH-Index: 19
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Our indoor microbiome consists of a wide range of microbial taxa. Whilst many of these microbes are benign, some are beneficial, some harmful, yet our knowledge of the spatial heterogeneity of bacterial assemblages in our residential environment remains limited. To investigate the existence of a common core house dust bacterial microbiome we selected household vacuum dusts, collected through a citizen science approach, from homes across two bioclimatic regions (UK, Oceanic/Maritime and Greece, M...
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#1Pat E. Rasmussen (Health Canada)H-Index: 32
#2Christine Levesque (Health Canada)H-Index: 8
Last. H. David Gardner (Health Canada)H-Index: 7
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Trends in the elemental composition of fine particulate matter (PM2.5 ) collected from indoor, outdoor, and personal microenvironments were investigated using two metrics: ng/m3 and mg/kg. Pearson correlations that were positive using one metric commonly disappeared or flipped to become negative when the other metric was applied to the same dataset. For example, the correlation between Mo and S in the outdoor microenvironment was positive using ng/m3 (p < 0.05) but negative using mg/kg (p < 0.05...
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#1Clare L.S. WisemanH-Index: 14
#2Christine Levesque (Health Canada)H-Index: 8
Last. Pat E. RasmussenH-Index: 32
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Abstract Road dust is a sink and source of metals and metalloids of human health concern. To date, many studies have examined the composition of road dust but there remain critical knowledge gaps on the chemistry of thoracic fractions ( The median trace element concentrations in city sweepings (n = 64) ranged from highest to lowest as follows: Mn > Zn > Ba > Cr > Cu > Pb > V > Ni > Sn > Mo > Co > As > Sb > Cd. Iron, Cr, Ni, Co, Mo and Cu levels were significantly associated with road class, with...
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#1Christine LevesqueH-Index: 9
#2Clare L.S. WisemanH-Index: 14
Last. Pat E. RasmussenH-Index: 32
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A fluidized bed aerosol generator was connected to a 13-stage cascade impactor (nanoMOUDI) for the size fractionation of urban dust (<10 µm), followed by the gravimetric analysis of loaded PTFE filter samples. This method was used to characterize the PM10 (thoracic) fraction of road dust sampled from expressways, arterial roads and local roads in Toronto, Canada. The fine particle fractions (<1.8 µm) of all the studied samples accounted for 51–72% of the resuspended PM10 (by weight). Elemental a...
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#1Andrey Boyadzhiev (U of O: University of Ottawa)H-Index: 1
#2Mary-Luyza Avramescu (Health Canada)H-Index: 4
Last. Sabina Halappanavar (U of O: University of Ottawa)H-Index: 2
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The in vitro and in vivo toxicity of copper oxide nanoparticles (CuO NPs) is attributed to both particle and dissolved copper ion species. However, a clear understanding of (1) the specific cellular responses that are modulated by the two species and (2) the temporal dynamics in toxicity, as the proportional amount of particulate and ionic forms change over time, is lacking. In the current study, in vitro responses to microparticulate CuO (CuO MPs), CuO NPs, and dissolved Cu2+ were characterized...
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#1Charles Bevington (EPA: United States Environmental Protection Agency)H-Index: 1
#2H. D. Gardner (U of O: University of Ottawa)H-Index: 3
Last. Pat E. Rasmussen (U of O: University of Ottawa)H-Index: 32
view all 5 authors...
Abstract Dust-lead monitoring studies typically report values as either dust-lead loadings (μg/ft2) or as dust-lead concentrations (μg/g). This study presents an approach for estimating dust-lead concentrations, when only dust-lead loading values are available. A literature search identified five large studies (>200 homes) that contained original data for both dust-lead loading and dust-lead concentration, and could be used to develop an empirically-based loading to concentration (LTC) model. Th...
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#1Cariton KubwaboH-Index: 19
#2Xinghua FanH-Index: 7
Last. Pat E. RasmussenH-Index: 32
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#1Xinghua Fan (Health Canada)H-Index: 7
#2Guru Prasad Katuri (Health Canada)H-Index: 1
Last. Cariton Kubwabo (Health Canada)H-Index: 19
view all 5 authors...
Abstract Bisphenol A (BPA) is a high production volume (HPV) chemical used to make polycarbonate (PC) plastics and epoxy resins. Due to its potential adverse health effects, BPA has been restricted or banned in some products and thus many alternatives to BPA have been introduced into the market. Most of these alternatives such as bisphenol S (BPS), bisphenol F (BPF), and bisphenol M (BPM), have similar chemical structures to BPA and termed as BPA analogues (BPAAs). In this study, a method was de...
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#1Suzanne BeaucheminH-Index: 18
#2Christine LevesqueH-Index: 8
Last. Clare L.S. WisemanH-Index: 14
view all 4 authors...
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#8Barbara Le Bot (University of Rennes)H-Index: 8
Indoor settled dust may result in substantial human exposure to chemicals, especially by ingestion following hand-to-mouth or hand-to-object-to-mouth contact. As with other environmental media related to exposure, dust may thus be subject to regulation. An international scientific workshop was convened in Paris in September 2019 to assess the relevance for public health of setting guidelines for indoor settled dust, and secondly to discuss scientific and technical challenges related to such guid...
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