Salem Journal of Science, Information & Communication Technology

Creation of Green Cities involves designing well ventilated houses, apartment blocks and buildings that welcome natural lighting and consume less electric power. Designing green cities is not at all difficult. By so doing you will be creating sustainable environment. This paper examines the current state of green cities and strategies to increase green cities. Data for the study were derived from primary and secondary sources. The poor quality of Nigerian urban environment has been attributed partly to the inadequate, misuse and mismanagement of urban open spaces. It exerts major strain on the physical outlook on the nation's cityscape and a negative effect on the welfare and productivity of the residents. The green cities have an important multifunctional role in improving the living environment: pollution control; water conservation; soil erosion control; diminishing bacterial impact on man and animals by purifying the atmosphere; mitigating urban climate; and improving the quality of urban living through the psychological and sanogenic effect. Green cities require a multidisciplinary and collective approach for it to succeed. Many agencies and ministries must come together to create green cities. On a large scale all the Nigerian people need to be mobilized to adopt life styles that promote sustainable cities development.

Now a day’s there is an increasing recognition that freshwater is a valuable resource due to overexploitation and pollution. Wastewater discharge contains several harmful substances or chemicals, which may cause adverse environmental impacts such as changes in aquatic habitats, species composition, and a decrease in biodiversity (Li, et al., 2024). All of these impacts lead to a less valuable environment, a less prosperous economy, and ultimately, a diminished quality of life. Recent studies have highlighted the complex interactions between multiple pollutants in sewage and their synergistic negative effects on freshwater ecosystems (Patel & Sharma, 2023). Furthermore, the impact of emerging contaminants, such as microplastics present in wastewater, on freshwater biodiversity is a growing area of concern (Khan & Ahmed, 2025). Several substances are present in sewage, which can potentially impact seafood, plant and animal communities in different ways.  Common pathogens such as Vibrio spp., Salmonella, Shigella, Listeria monocytogenes, and Aeromonas spp. Are frequently Associated with seafood-related illnesses, particularly when products are consumed raw or Undercooked, or harvested from contaminated waters. The risk is exacerbated in environments with inadequate sanitation, improper handling, or cross-contamination during processing and Distribution.The presence of antimicrobial-resistant (AMR) strains further complicates treatment and control Efforts, making routine surveillance, stringent hygiene practices, and public education essential. This article therefore advocates for preventative strategies—such as monitoring harvest waters, enforcing seafood safety regulations. It also recommends that proper cooking is critical to reducing the incidence of foodborne infections and that continued Research and a One Health approach are needed to manage the evolving risks of bacterial Pathogens in seafood and safeguard public health.