NP, OP and Derivatives in Freshwater Sediment Downstream of Textile Associated Municipal Wastewater Discharges.

Alkylphenol ethoxylates comprise of many anthropogenic chemicals such as nonylphenol (NP), octylphenol (OP) and nonylphenol ethoxylates (NPEOs). The objectives of this study were to assess the frequency and magnitude of detections of 4-NP, OP and NPEOs in Canadian sediment downstream of textile associated municipal wastewater treatment plants (MWWTPs) to determine if regulatory actions have had a beneficial impact on the receiving environment. Surficial sediments were obtained in four locations in the province of Québec (Canada) and were analyzed for nonylphenol, nonylphenol monoethoxylates (NP1EO), nonylphenol diethoxylates (NP2EO) and octylphenol from 2015 to 2018. Individual concentrations of the compounds varied from non detect to 419 ng/g. Of the four compounds analyzed, NP was detected the most frequently with a 75% detection rate while OPs were not detected in any of the samples. Since the Canadian regulatory actions have drastically reduced NP/NPEOs usage in textile mill factories and manufactured products, the potential source of these compounds in sediment for this study could stem from the outfall from the MWWTPs but not related to textile mills as well as from the usage of these compounds as formulants in pesticide products. Lastly, there were no exceedances to the Canadian Sediment Quality guideline toxic equivalency approach (TEQ) of 1400 ng/g or the 1310 ng/g guideline for NP in freshwater sediment from the European Scientific Committee on Health, Environmental and Emerging Risks. We hypothesize that the significant concentrations of these compounds in sediment may be a relevant and continuous source of 4NP in surface waters due to resuspension of sediment in the water column.

Explaining immigration casework in federal Members of Parliament's district offices in Canada.

In Canada, a majority of federal constituency offices deal primarily with immigration files. The few qualitative studies on the subject show that the resources dedicated to these files and the type of work carried out on the immigration files handled vary between offices, thus contributing to disparities in service between federal electoral districts. How can such variation be explained? Based on the quantitative analysis of unpublished administrative data, this article first highlights the diversity of files handled by constituency offices, as well as the types of intervention carried out by constituency assistants. It then aims to explain the variations in case processing according to the type of case and the volume of requests handled. Studies of constituents' files received and processed at constituency office level have argued that the political ideology, gender and ethnicity of the deputy as well as the demographics of the constituency are explanatory factors. This analysis shows that in the case of immigration files, constituency demography is the most important factor, while the MP's political affiliation plays a very limited role. These results shed new light on the factors involved in the processing of immigration cases at constituency level, and add nuance to previous, mainly qualitative analyses. Our results also contribute to understanding the work of constituency offices for constituents, which appears to be far less partisan than in other countries where similar offices exist.

Au Canada, une majorité de bureaux de circonscription fédérale traite principalement des dossiers d'immigration. Les quelques études qualitatives portant sur le sujet montrent que les ressources dédiées à ces dossiers et le type de travail effectué sur les dossiers dʼimmigration traités varient entre les bureaux, contribuant ainsi à des disparités de services entre les circonscriptions électorales fédérales. Comment expliquer une telle variation? En sʼappuyant sur lʼanalyse quantitative de données administratives inédites, cet article met dʼabord en évidence la diversité des dossiers traités par les bureaux de circonscription ainsi que les types d'intervention effectués par les adjoints de circonscription. Ensuite, il vise à expliquer les variations du traitement des dossiers en fonction du type de dossier et du volume des demandes traité. Les études sur les dossiers de commettants reçus et traités au niveau des bureaux de circonscription ont soutenu que lʼidéologie politique, le genre et lʼethnicité du député ainsi que la démographie de la circonscription sont des facteurs explicatifs. Cette analyse montre que dans le cas des dossiers dʼimmigration, la démographie de la circonscription est le facteur le plus important, tandis que l'appartenance politique du député joue un rôle très limité. Ces résultats apportent un nouvel éclairage sur les facteurs du traitement des dossiers dʼimmigration au niveau des circonscriptions et nuancent les analyses antérieures, principalement qualitatives. Nos résultats contribuent également à la compréhension du travail des bureaux de circonscription pour les commettants, qui semble être bien moins partisan que dans dʼautres pays où des bureaux semblables existent.

Epidemiology of Pediatric Tumors in Quebec: A 17-Year Report of Cancer in Young People in the Canada Registry.

BACKGROUND: Cancer is the leading cause of disease-related death among children of more than 1 year of age. However, childhood cancer risk factors and etiology are yet to be fully understood. The goal of this study is to identify geographic variation among children and adolescents diagnosed with pediatric tumors between 2001 and 2018 in the province of Quebec. METHODS: We analyzed pediatric patients less than 15 years of age from the Cancer in Young People in Canada (CYP-C) surveillance system who were diagnosed between 2001 and 2018 with cancer in the province of Quebec. The age-standardized age-adjusted incidence rates (AAIR) per 100,000 person years were calculated for all childhood cancers by cancer subgroups, Quebec Health regions, and age groups. RESULTS: Overall, 3904 pediatric patients less than 15 years old were diagnosed with cancer in the province of Quebec in 2001-2018. The overall incidence rate (IR) in the province of Quebec was 16.14 (95%CL [15.56-16.73]) per 100,000 person years. For childhood cancers, regions that presented a higher AAIR were Chaudière-Appalaches and Capitale-Nationale with 18.2 and 17.5 per 100,000 person years, respectively. The incidence rates (IRs) in Chaudière-Appalaches (95% CI 1.0439-1.3532) and in Capitale-Nationale (95% CI 1.0124-1.2942) were statistically higher than the incidence in the province of Quebec (p = 0.0090 and p = 0.0310, respectively). When comparing the AAIR of the CNS tumor subgroup in Chaudière-Appalaches and in Capitale-Nationale, with the provincial average, we noticed a statistically higher incidence in Chaudière-Appalaches and a trend for Capitale-Nationale (p < 0.0001 and p = 0.0602, respectively). CONCLUSION: There is evidence of spatial clusters in Chaudière-Appalaches and Capitale-Nationale as areas for all childhood cancers. Further studies should be performed to investigate potential risk factors in these regions.