Tony R. Walker
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View article: Atmospheric deposition drives microplastic contamination in remote lakes of Newfoundland, Canada
Atmospheric deposition drives microplastic contamination in remote lakes of Newfoundland, Canada Open
Microplastics (MPs) have been identified in virtually all environments around the globe, posing a threat to both humans and nature. Though there have been numerous studies on MPs in aquatic environments, there is still a lack of knowledge …
View article: Correction: Gharari et al. Eco-Friendly Green Synthesis and Characterization of Silver Nanoparticles by Scutellaria multicaulis Leaf Extract and Its Biological Activities. Pharmaceuticals 2023, 16, 992
Correction: Gharari et al. Eco-Friendly Green Synthesis and Characterization of Silver Nanoparticles by Scutellaria multicaulis Leaf Extract and Its Biological Activities. Pharmaceuticals 2023, 16, 992 Open
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View article: Contamination Level, Distribution, and Inventory of Dechlorane Plus (DP) in the Surface Soil of Shenyang City, China
Contamination Level, Distribution, and Inventory of Dechlorane Plus (DP) in the Surface Soil of Shenyang City, China Open
Dechlorane Plus (DP), an emerging type of persistent organic pollutant (POP), poses potential harmful effects on plants, animals, and humans alike, garnering increasing attention. Urban surface soil is easily accessible to urban residents,…
View article: Challenges and opportunities for ports in achieving net-zero emissions in maritime transport
Challenges and opportunities for ports in achieving net-zero emissions in maritime transport Open
Shipping ports are vital nodes in maritime transport networks and play crucial roles in the global economy and international trade. Despite their economic importance ports have adverse effects on the environment. Air pollution and emission…
View article: From insight to action: Possible pathways for sustainable futures in a Canadian university
From insight to action: Possible pathways for sustainable futures in a Canadian university Open
This study examines the impact of the Thriving Futures 2023 event, which engaged the Dalhousie University (DAL) community located in Halifax, Nova Scotia, Canada, and residents from the broader Halifax area in exploring inclusive sustainab…
View article: Underrepresented developing States, marginalized communities, big business and procedural injustice – how equal were the UN INC-5.2 Global Plastic Treaty negotiations?
Underrepresented developing States, marginalized communities, big business and procedural injustice – how equal were the UN INC-5.2 Global Plastic Treaty negotiations? Open
Negotiations by more than 180 States during the Intergovernmental Negotiating Committee (INC) session 5.2 to develop a legally binding instrument with the purpose to end plastic pollution have, once again, concluded without a treaty. This …
View article: Addressing microplastics in drinking water in the global plastics treaty – Gaps, challenges and opportunities
Addressing microplastics in drinking water in the global plastics treaty – Gaps, challenges and opportunities Open
The escalating presence of microplastics (<5 mm) in drinking water presents urgent environmental and health challenges, yet the United Nations Environment Programme’s (UNEP) Global Plastics Treaty draft texts, including UNEP/PP/INC.5/4 and…
View article: A call to ban non-essential microplastics used in cosmetics, festival and holiday decorations
A call to ban non-essential microplastics used in cosmetics, festival and holiday decorations Open
Festivities, holidays and celebrations are often associated with unsustainability and high environmental impact. Examples include unsustainable overconsumption and waste during Christmas, Ramadan and during the Chinese New Years celebratio…
View article: The Motherhood Aesthetic in Contemporary Black American Plays
The Motherhood Aesthetic in Contemporary Black American Plays Open
This collection introduces the "Black female Motherhood Aesthetic," a theory revealing the complexities of Black motherhood in contemporary America. Through an interpretation of plays written by Black female playwrights Suzan-Lori Parks, C…
View article: Atmospheric microplastics must be addressed in the global plastics treaty
Atmospheric microplastics must be addressed in the global plastics treaty Open
The goal of the Global Plastics Treaty is to “end plastic pollution and to protect human and environmental health.” Despite overwhelming evidence of the adverse impacts of microplastics on human and environmental health, the inclusion of h…
View article: Why don’t we reuse our food packaging? Insights from two organizations implementing packaging return systems to avoid single-use plastics
Why don’t we reuse our food packaging? Insights from two organizations implementing packaging return systems to avoid single-use plastics Open
Plastic pollution is a pervasive and urgent environmental issue, caused by our unsustainable use of single-use plastics (plastic items that are commonly discarded after one use). Many of these plastics are used in food packaging, frequentl…
View article: Implications of carbon pricing on food affordability and agri-food sector in Canada: A scoping review
Implications of carbon pricing on food affordability and agri-food sector in Canada: A scoping review Open
This review delves into the effects of carbon pricing policies on food affordability and the performance of the agri-food sector, with a specific focus on Canada. Against the backdrop of the widespread adoption of carbon pricing as a cruci…
View article: Implications of carbon Taxing policies on the food supply chain in Canada
Implications of carbon Taxing policies on the food supply chain in Canada Open
This paper explores the implications of carbon-taxing policies on food supply chain affordability and competitiveness in Canada. Initiated with Alberta’s 2007 carbon levy, Canada’s approach to carbon taxation aims to mitigate greenhouse ga…
View article: Effective management of endangered Blanding’s Turtle (Emydoidea blandingii) populations in Nova Scotia, Canada, requires consideration of threats posed by legacy gold mine contamination
Effective management of endangered Blanding’s Turtle (Emydoidea blandingii) populations in Nova Scotia, Canada, requires consideration of threats posed by legacy gold mine contamination Open
The Nova Scotia, Canada, Blanding’s turtle (Emydoidea blandingii) population is designated as endangered both federally and provincially. Currently, its range is confined to five disjunct sub-populations in the province’s southwestern inte…
View article: Plastic recycling: A panacea or environmental pollution problem
Plastic recycling: A panacea or environmental pollution problem Open
Increasing plastic waste is a critical global challenge to ecological and human health requiring focused solutions to reduce omnipresent plastic pollution in the environment. While recycling has been touted as one solution to counter plast…
View article: Ecological risk assessment framework for microplastics in agricultural soils amended with biosolids
Ecological risk assessment framework for microplastics in agricultural soils amended with biosolids Open
This study conceptualizes a framework for ecological risk assessment of microplastics (MPs) in agricultural soils amended with biosolids. MPs in biosolids pose risks to soil biota, affecting soil health. The study highlights the complexity…
View article: Gujarat’s plastic plight: unveiling characterization, abundance, and pollution index of beachside plastic pollution
Gujarat’s plastic plight: unveiling characterization, abundance, and pollution index of beachside plastic pollution Open
Plastic pollution poses a pervasive threat to ecosystems worldwide, jeopardizing marine life, contaminating water sources, and perpetuating a global environmental crisis. Spatial and temporal distribution of beach debris was quantitatively…
View article: Global producer responsibility for plastic pollution
Global producer responsibility for plastic pollution Open
Brand names can be used to hold plastic companies accountable for their items found polluting the environment. We used data from a 5-year (2018–2022) worldwide (84 countries) program to identify brands found on plastic items in the environ…