Paul Heroux

Paul Heroux
McGill University | McGill

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49
Publications
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937
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Publications

Publications (49)
Article
Glucocorticoids (GCs) in the environment have been an increasing concern. Most recently, GCs have been shown to be an effective remedy to manage septic shock in patients infected with COVID-19. In this study, a self-made dielectric barrier discharge reactor integrating microbubbles and peroxymonosulfate (DBD/MB/PMS) was used to degrade the GCs in w...
Article
The applications of photocatalytic pollutant degradation have remained limited due to the low efficiency of solar energy utilization. In this study, a photothermal catalyst consisting of reduced graphene oxide @ black TiO2 ([email protected]) nanofluid with effective full-spectrum (from ultraviolet to infrared light) absorption was synthesized by a...
Article
The plasticizer di(2-ethylhexyl) phthalate (DEHP) and its hydrolysate mono(2-ethylhexyl) phthalate (MEHP) are major toxicants from plastics, but their association with hormone-dependent cancers has been controversial. We treated the human ovarian cancer cell lines SKOV3 and A2780 with low concentrations of DEHP/MEHP, and found that although no sign...
Article
Persulfate (PS) activated by dielectric barrier discharge (DBD) integrated with microbubbles (MBs) was designed to decompose atrazine (ATZ) from aqueous solutions. The degradation efficiency reached 89% at a discharge power of 85 W, a PS concentration of 1 mM, and a air flow rate of 30 mL/min after 75 min treatment. Heat caused by DBD favoured ATZ...
Article
Full-text available
Phthalate ester plasticizers are used to improve the plasticity and strength of plastics. One of the most widely used and studied, di-2-ethylhexyl phthalate (DEHP), has been labeled as an endocrine disruptor. The major and toxic metabolic derivative of DEHP, mono-2-ethylhexyl phthalate (MEHP), is capable of interfering with mitochondrial function,...
Article
Diesel-fuel-polluted soil poses a risk to both the environment and human health. This study assessed the feasibility and efficiency of dielectric barrier discharges (DBD) for the degradation of diesel fuel in soil. At 180 W input power, 3 mm soil depth, initial concentration of 10,000 mg/kg, soil pH of 7.1, and 2% moisture, the degradation efficien...
Technical Report
Full-text available
This is the final report of the State Commission formed to investigate the health effects of 5G and other sources of non-ionizing radiation.
Article
Ticagrelor is the first reversibly binding oral P2Y12 receptor antagonist to inhibit platelet activation and has been approved by the Food and Drug Administration for the treatment of coronary artery disease. At present, the other pharmacological functions of ticagrelor remain poorly understood. The NOD-, LRR-, and pyrin domain-containing protein 3...
Article
This article identifies adverse effects of non-ionizing non-visible radiation (hereafter called wireless radiation) reported in the premier biomedical literature. It emphasizes that most of the laboratory experiments conducted to date are not designed to identify the more severe adverse effects reflective of the real-life operating environment in w...
Article
Full-text available
Expansions in power and telecommunications systems have created a new electromagnetic environment. Here, we compare the death rate of human cancer cells in vitro in the pre-industrial electromagnetic environment of the past (“Zero Field”) with that of an electromagnetic environment typical of contemporary human exposures (“Incubator Field”). A cell...
Article
Perfluorooctanoic acid (PFOA) from contaminated soil accumulates in higher organisms, and causes health risks to humans. In this research, 71 % of the PFOA was degraded, of which 51 % was decomposed into short chain by-products, 19 % mineralized, and 1 % volatilized with 30 kV of voltage, 50 Hz of discharge frequency, 1 % of soil moisture, 300 ppm...
Article
Traditional seed pretreatment methods cause secondary pollution for the application of various chemicals. This study investigated the effect of dielectric barrier discharge (DBD) cold plasma on seedling growth. Effects of plasma activated tap water (PATW) and plasma activated seeds (PAS) were compared for germination rates, seedling height, dry wei...
Article
Prometryn is a slightly to moderately toxic herbicide belonging to the triazine family of herbicides, which are widely used in agriculture to control the growth of various weeds. Although many studies have shown that triazine herbicides have carcinogenic potential in humans, the cytotoxic effects of prometryn on human cells, and the mechanisms unde...
Article
Gasoline contaminated soil poses an environmental and human health problem, which may be partially solved by the emerging non-thermal plasma technology. In this study a pulse corona discharge (PCD) reactor was employed to degrade gasoline in soil and simultaneously to fix nitrogen in soil. The gasoline removal rates were influenced by input power,...
Article
Inorganic lead is one of the most common causes of environmental metal poisonings, and its adverse effects on multiple body systems are of great concern. The brain, along with the kidneys, are critically susceptible to lead toxicity for their hosting of high affinity lead binding proteins, and very sensitive physiology. Prolonged low-lead exposure...
Article
Background: Little is known regarding the effects of environmental exposure of chemicals on androgenic system in the general population. We studied 5,107 subjects included in the National Health and Nutrition Examination Survey (2011-2012). Methods: Urinary, serum, and blood levels of 15 subclasses comprising 110 individual chemicals were analyz...
Article
Full-text available
Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. Objectives: To examine the effect of ELF-MFs on cancer cells. Methods: Five cancer cell lines were exposed to ELF-MFs within the range of 0.025-5 µT, and the cells were examined for...
Data
Full-text available
The metabolism of cultured cancer cells is stimulated by 21% oxygen and generous nutrition, while real tumors grow in oxygen and nutrient-restricted environments. The effect of these contrasted conditions was studied in five hyperploid (54 – 69) cancer cell lines. When grown under anoxia and in the presence of antioxidant metabolic restrictors, the...
Article
Full-text available
A typical cell culture CO2 incubator was probed in detail to document the pattern of 60-Hz magnetic fields (MFs) inside the unit, as well as the ability of the incubator to attenuate environmental MFs. Subsequently, a survey of 46 cell culture incubators was performed. The survey measured MFs outside and inside the incubators, the frequency spectru...
Article
Full-text available
The metabolism of cultured cancer cells is stimulated by 21% oxygen and generous nutrition, while real tumors grow in oxygen and nutrient-restricted environments. The effect of these contrasted conditions was studied in five hyperploid (54-69) cancer cell lines. When grown under anoxia and in the presence of antioxidant metabolic restrictors, the c...
Article
Full-text available
The aim of this study was to characterize 60-Hz magnetic field levels in 79 schools managed by the Carleton Board of Education. Using a Field StarTM 1000 magnetometer, 43,009 60-Hz magnetic field measurements were taken in June 1993. The average magnetic field levels in schools (AM =9 0.082 µT, GM = 0.033 µT) were lower than in many other occupatio...
Article
Full-text available
The authors report the association between exposure to pulsed electromagnetic fields (PEMFs) and cancer in a nested case-control study of electric utility workers in Quebec, Canada (follow-up, 1970–1988), and France (follow-up, 1978–1989), among whom 2,679 cases of cancer were identified. Exposures were assessed through a job-exposure matrix based...
Article
Full-text available
The authors report the association between exposure to pulsed electromagnetic fields (PEMFs) and cancer in a nested case-control study of electric utility workers in Quebec, Canada (follow-up, 1970–1988), and France (follow-up, 1978–1989), among whom 2,679 cases of cancer were identified. Exposures were assessed through a job-exposure matrix based...
Article
Full-text available
Solving the experimental difficulties associated with measurement of the electrical impedance of living tissues gives access to valuable tissue compartment parameters which are sensed within seconds using minimally invasive, simple metallic electrodes. Extracellular conductivity and cell membrane capacitance can be followed over time under conditio...
Article
There are currently no biological indicators of electromagnetic field exposure to aid investigation of the biological effects of ELF fields, but this hiatus is partly compensated for by the ease with which the external fields can be measured. The subject of this report is a small electronic instrument that can log electric-, magnetic-, and transien...
Article
A chronic electrical burn model employing documentary and diagnostic techniques was designed in the primate for investigating wound evolution up to 10 days after injury. A standardized 40-kJ, 3500-V, 4.2-A, 2.5-s bilateral, symmetrical upper extremity electrical injury was performed. Gross observation studies documented tissue injury extending more...
Article
A chronic electrical burn model employing documentary and diagnostic techniques was designed in the primate for investigating wound evolution up to 10 days after injury. A standardized 40-kJ, 3500-V, 4.2-A, 2.5-s bilateral, symmetrical upper extremity electrical injury was performed. Gross observation studies documented tissue injury extending more...
Article
Full-text available
One problem that has limited past epidemiologic studies of cancer and exposure to extremely low-frequency (0-100 Hz) electric and magnetic fields has been the lack of adequate methods for assessing personal exposure to these fields. A new 60-Hz electromagnetic field dosimeter was tested to assess occupational and residential exposures of a group of...
Article
A reproducible high-voltage electrical injury model was established in the primate using a new approach to energy administration, measurement instrumentation, and data acquisition. Patterns of current repartition and temperature generation were examined in 24 primates. The predominant current load was carried in muscle, which is the tissue group oc...
Article
From a mobile unit, 60-Hz electric and magnetic fields generated by Hydro-Québec's distribution network were measured. Nine runs, representative of various human environments, were investigated. Typical values were 32 V/m and 0.16 μT. The electrical distribution networks investigated were major contributors to the electric and magnetic environments...
Article
Full-text available
The corona, electric field and ion- current performnance of a 6 x 4.06-cm conductor bundle, chosen for use on a ±900-kV bipolar HVDC transmission line, was studied on a test line for a period of over 18 months. The results obtained provide a statistical evaluation of radio interference (RI), audible noise (AN), corona loss (CL), electric field and...
Article
Full-text available
Can improved conductor designs lower the corona levels (audible noise, electromagnetic interference, power losses) of HVAC transmission lines under foul weather conditions? Three types of improved conductors are considered: hydrophilic, hydrophobic and ion-shielded. Hydrophobic conductors exposed to the environment could not maintain their water dr...
Article
Full-text available
Some special aspects of the corona performance of bipolar HVDC transmission lines, as well as basic results on the corona performance-of bipolar bus configurations, are presented in this paper. In the special bipolar line study, the influence of the line parameters, namely the pole spacing and the conductor height, on the corona performance of bipo...
Article
Full-text available
The results of a comprehensive study on the corona performance characteristics of bipolar high-voltage direct-current (hvdc) transmission systems operating at a nominal voltage of +- 900 kV are presented. Results are also presented of bipolar and monopolar cage tests on 19 conductor bundle configurations at voltages corresponding to maximum conduct...
Article
Full-text available
A systematic study has been carried out to determine and correlate the electrical and acoustical characteristics of pulsative corona at single discharge sites. Small protrusions of both spherical and conical shapes were placed on a 12-cm sphere, in a point-to-plane test arrangement. The shapes of current and sound pressure pulses were investigated....
Article
Some special aspects of the corona performance of bipolar HVDC transmission lines, as well as basic results on the corona performance of bipolar bus configurations, are presented in this paper. In the special bipolar line study, the influence of the line parameters, namely the pole spacing and the conductor height, on the corona performance of bipo...
Article
Un article n'a pas été microfilmé à cause de l'application du droit d'auteur, feuillets, 176-183. Feuillet 69a inséré. Thèse (M. Sc.)--Institut national de la recherche scientifique, Université du Québec, 1976. Includes bibliographical references (feuillets 174-175). Microfiche du manuscrit dactylographié.

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