Sulfur dioxide (SO₂) is a major air pollutant generated primarily from the combustion of fossil fuels and certain industrial processes. Exposure is linked to respiratory irritation, asthma exacerbation, and cardiovascular effects, while also contributing to acid rain, which damages ecosystems, infrastructure, and agriculture. Although emissions have declined in many regions due to regulations, SO₂ remains…

Cadmium is a naturally occurring heavy metal that has become a global concern due to its widespread industrial use and persistence in the environment. Found in batteries, pigments, plastics, and as a byproduct of mining and smelting, cadmium can contaminate air, soil, and water. Human exposure primarily occurs through food, tobacco smoke, and occupational settings,…

Food safety is a critical determinant of public health and economic stability. Contaminated food can lead to outbreaks of illness, chronic health effects, and loss of consumer confidence, while also disrupting trade and damaging the reputations of producers and regulators. Risks arise from microbial pathogens, chemical contaminants, allergens, and physical hazards, often exacerbated by complex…

Privacy has become one of the defining issues of the digital age, touching every aspect of personal, commercial, and governmental activity. With vast amounts of data generated through online platforms, health systems, financial services, and smart devices, individuals face growing risks of surveillance, identity theft, misuse of personal information, and erosion of autonomy. The challenge…

Bovine spongiform encephalopathy (BSE), or “mad cow disease,” remains one of the most notable examples of how animal health risks can escalate into public health and economic crises. Linked to variant Creutzfeldt-Jakob disease in humans, BSE outbreaks in the late 20th century caused widespread alarm, disrupted international trade, and reshaped food safety regulation globally. The…

Country foods — the traditional foods harvested, hunted, or fished by Indigenous and rural communities — are central to cultural identity, nutrition, and food security. They provide essential nutrients, support community resilience, and reinforce connections to land and heritage. However, these foods can also present risks due to environmental contamination, overharvesting pressures, or changing ecosystems…

Aluminium is among the most widely used metals globally, valued for its light weight, versatility, and role in industries ranging from packaging and construction to transportation and consumer goods. Yet its ubiquity has also raised questions about potential health and environmental risks. Aluminium exposure can occur through food, water, consumer products, and occupational settings, and…

The protection of native species is central to biodiversity, ecosystem resilience, and cultural heritage. Native plants, animals, and microorganisms provide critical ecosystem services such as pollination, water purification, and soil stability. Yet these species face mounting risks from habitat loss, climate change, pollution, and invasive species. The decline or disappearance of native species not only…

Cannabis regulation has rapidly evolved in recent years, shifting from prohibition toward medical and recreational legalization in many jurisdictions. While legalization brings opportunities for economic growth and social justice reforms, it also raises significant public health and safety questions. Concerns include impaired driving, adolescent use, product contamination, and the long-term health effects of high-potency formulations.…

Lithium has become a strategic material in the global transition to renewable energy, powering batteries for electric vehicles, consumer electronics, and grid storage systems. Demand is growing exponentially, raising both opportunities and risks. While lithium plays a central role in decarbonization, its extraction, processing, and disposal raise concerns about environmental impacts, worker safety, and geopolitical…