Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health—A Case Study of the Nairobi River

Urban areas face significant challenges in maintaining water quality amidst increasing urbanization and changing climatic patterns. This study investigates the complex interplay between meteorological variables and water quality parameters in Nairobi City, focusing on the impacts of rainfall and temperature on surface water quality. Data from multiple sources, including the Water Resources Authority, Nairobi Water and Sewerage Company, and the World Bank’s Climate Change Knowledge Portal, were analyzed to assess the relationships between meteorological variables (rainfall and temperature) and water quality parameters (such as electroconductivity, biochemical oxygen demand, chloride, and pH). The analysis reveals varying impacts of rainfall and temperature on different water quality parameters. While parameters like iron and pH show strong relationships with both rainfall and temperature, others such as ammonia and nitrate exhibit moderate relationships. Additionally, the study highlights the influence of runoff, urbanization, and industrial activities on water quality, emphasizing the need for holistic management approaches. Recommendations encompass the establishment of annual publications on Nairobi River water quality, online accessibility of water quality data, development of hydrological models, spatial analysis, and fostering cross-disciplinary research collaborations. Implementing these recommendations can enhance water quality management practices, mitigate risks, and safeguard environmental integrity in Nairobi City.

Health Risk Assessment of Employees Exposed to Chlorination By-products of Recreational Water in Large Amusement Parks in Shanghai

Objective Chlorination is often used to disinfect recreational water in large amusement parks;however,the health hazards of chlorination disinfection by-products(DBPs)to occupational populations are unknown.This study aimed to assess the exposure status of chlorinated DBPs in recreational water and the health risks to employees of large amusement parks.Methods Exposure parameters of employees of three large amusement parks in Shanghai were investigated using a questionnaire.Seven typical chlorinated DBPs in recreational water and spray samples were quantified by gas chromatography,and the health risks to amusement park employees exposed to chlorinated DBPs were evaluated according to the WHO's risk assessment framework.Results Trichloroacetic acid,dibromochloromethane,bromodichloromethane,and dichloroacetic acid were detected predominantly in recreational water.The carcinogenic and non-carcinogenic risks of the five DBPs did not exceed the risk thresholds.In addition,the carcinogenic and non-carcinogenic risks of mixed exposure to DBPs were within the acceptable risk limits.Conclusion Typical DBPs were widely detected in recreational water collected from three large amusement parks in Shanghai;however,the health risks of DBPs and their mixtures were within acceptable limits.

Characterization of Wastewater in School Environments for an Ecological Treatment Solution: A Case Study of Ndiebene Gandiol 1 School

The study conducted at Ndiebene Gandiol 1 school in Senegal has unveiled serious environmental and public health challenges. The wastewater analysis revealed high levels of Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), and fecal coliforms, signaling potential risks to the well-being of students and staff. This situation mirrors a wider issue in rural educational settings, where inadequate sanitation persists. Intensive wastewater treatment options are known for their effectiveness against high pollutant loads but are resource-intensive in both energy and cost. Conversely, extensive treatment systems, while requiring more land, provide a sustainable alternative by harnessing natural processes for pollutant removal. The research suggests a hybrid treatment approach could serve the school’s needs, balancing the robust capabilities of intensive methods with the ecological benefits of extensive systems. Such a solution would need to be tailored to the specific environmental, financial, and logistical context of the school, based on comprehensive feasibility studies and stakeholder engagement. This study’s findings underscore the urgency of addressing sanitation in schools, as it is intrinsically linked to the health and academic success of students. Quick, effective, and long-term strategies are vital to secure a healthier and more prosperous future for the youth. With proper implementation, the school can transform its sanitation facilities, setting a precedent for rural educational institutions in Senegal and similar contexts globally.

A Review on Graphene-Based Nanomaterials in Biomedical Applications and Risks in Environment and Health

Graphene-based nanomaterials(GBNs) have attracted increasing interests of the scientific community due to their unique physicochemical properties and their applications in biotechnology, biomedicine, bioengineering, disease diagnosis and therapy. Although a large amount of researches have been conducted on these novel nanomaterials, limited comprehensive reviews are published on their biomedical applications and potential environmental and human health effects. The present research aimed at addressing this knowledge gap by examining and discussing:(1) the history, synthesis,structural properties and recent developments of GBNs for biomedical applications;(2) GBNs uses as therapeutics,drug/gene delivery and antibacterial materials;(3) GBNs applications in tissue engineering and in research as biosensors and bioimaging materials; and(4) GBNs potential environmental effects and human health risks. It also discussed the perspectives and challenges associated with the biomedical applications of GBNs.

Environmental health perspectives for low- and middle-income countries

In recent decades, the ecological environment has been increasingly challenged by the development of global industrialization and urbanization all over the world, even as global attention for health has raised dramatically. Common global environmental issues, such as air pollution and noise pollution, are associated with lasting impacts on health and contribute significantly to the overall burden of disease. Moreover, a global disparity exists between the burden of such environmental health issues and the global resources available to address this issue. To alleviate the environmental health impacts and ensure a sustainable future for human beings, China has made an important contribution to improving access to ecological protection, environmental governance, patriotic health campaigns, smart city construction, and so on. Experiences gained in China may be useful for some other countries, particularly the low- and middle-income countries with limited sources.

Socio-economic, Environmental and Health Aspects of Farm Workers Engaged in Mango Plantations

A cross-sectional survey of 489 male subjects in the age group 15 to 65 years engageddirectly or indirectly in mango cultivation along with 208 control subjects was carried out to find their socio-economic, environmental and health conditions. The conditions like high illiteracy rate (49.5%), poverty (PCI less than Rs 100 per month, 52.2%), poor housing (mud houses, 66.7%) unsafe water supply (78.6%) were prevailing in the surveyed population. The high respiratory morbidity may be attributed to high prevalence of smoking andprolonged inhalation of organic dusts during farming operation associated with illiteracyand poor socio-economic status. Gastrointestinal disorders were related to poor hygienic conditions, smoking and consumption of contaminated water. The symptoms pertaining to CNS, skin and eyes were found to be associated with exposure to pesticides

Environmental Occurrence of Selenium in Waters and Related Health Significance

Appreciable amounts of selenium in spring and well waters can be found due to geological occurrence. Concentrations of as much as 400 9000 μg/l have been reported in U. S. waters.These levels are 8 to 180 times the current EPA drinking water standard and approximate dietary exposures of 4900μg in selenosis regions of China. Reviews of health significance of the elevated drinking water exposures to U. S. populations revealed elevated concentrations of selenium in urine and blood. A decrease in glutathione peroxidase activity in such instances was noted. However noticeable symptoms and signs seem absent in studies reviewed. A comparison of intake levels (diet or drinking water) to urinary excretion for residents of China and the U. S. produced a correlation coefficient, r = 0. 82 (P < 0. 01 ) for the three research studies available

Environmental Exposure to Glyphosate and Reproductive Health Impacts in Agricultural Population of Argentina

Argentina annually utilizes 240,000 tones of glyphosate in industrial agriculture and a change in the profile of morbidity is perceived for physicians of agricultural areas;now reproductive disorders seem to prevail. The objective of this study is to determine concurrence of glyphosate exposure and reproductive disorders in a typical argentine agricultural town (Monte Maíz). An ecological study was developed with an environmental analysis of pollution sources including measurements of glyphosate and other pesticides and a cross-sectional study of spontaneous abortions and congenital abnormalities prevalence. Glyphosate was detected in soil and grain dust and was found to be at an even higher concentration in the village soil than in the rural area;650 tonnes of glyphosate are used annually in the region and manipulated inner town contaminating the soil and dust in suspension of the town creating an burden of environmental exposure to glyphosate of 79 kg per person per year. We do not find other relevant sources of pollution. The spontaneous abortion and congenital abnormalities rates are three and two times higher than the national average reported by the national health (10% vs. 3% and 3% - 4.3% vs 1.4% respectively). Our study verified high environmental exposure to glyphosate in association with increased frequencies of reproductive disorders (spontaneous abortion and congenital abnormalities) in argentine agricultural village, but is unable to make assertions cause-effect. Further studies are required with designs for such purposes.

On the Extent of Environmental Health

Background: Main purpose of this article is to offer information, criteria and conceptual proposals that could clarify the extent or scope of environmental health, and systematize the approaches for its institutional stewardship by environmental health services. Hopefully, it will be useful to managers, professionals, technicians and academics involved in the management, implementation, teaching or research of this multidisciplinary field. Methods: The notion of “environment” is examined, a definition is proposed, and a look is taken at the “green” and “blue” sides of environmental problems. A number of understandings in various countries for “environmental health” are put forth and lists of basic areas for environmental health are analyzed. Results: One finding is that all lists are, in reality, unsystematic groupings of three different constituents: determinants, processes and functions. Consideration of these groupings leads to a homogeneous list of 18 areas and 77 sub-areas. Sets or series are provided for each type of constituent (64 determinants, 18 processes and 25 functions), and their aggregation forms the enormous universe of environmental health activities. On the other hand, certain rules of operation are proposed which make it possible, through a form of algebra, to construct expressions based on the provided sets of constituents. And it becomes possible to employ a common symbolic language for describing or assigning activities in the environmental health services. Conclusions: The article analyses the contemporaneous extent of environmental health.

Empirical study of the dilemma regarding preliminary proof of causality and methods used by victims in China's environmental health litigation

Environmental health incidents have occurred frequently in recent years;in China,however,litigation has not been effective in protecting the rights and interests of victims due to their heavy burden of proof.In order to mitigate the burden of proof for victims,the environmental judicature in China introduced the rule of inversion of burden of proof;this means that the victim only assumes the preliminary burden of proof,but in practice it has not been sufficient.Victims in environmental health litigation still face many difficulties in proving causality.Based on the statistical analysis of judicial big data,this paper demonstrates three dilemmas faced by victims.First,the preliminary burden of proof of causality has a high standard.Second,the victim's ability to produce evidence is low.Third,the casual relationship between pollution behaviors and health damage is difficult to identify.When examining the possible legal instruments,there are three aspects to the causes of these dilemmas:theory,judicial practice,and society.The theoretical aspect manifests as the differences between the rule of inversion of burden of proof and the presumption of causality;the practical aspect manifests as the lack of an identification system for personal injury;and the social aspect manifests as the victim's lack of economic,scientific,technological,and information resources,as well as the absence of assistance from government sectors and social organizations.Combining Chinese law with judicial practice,this paper proposes a solution to the dilemma of victims needing to prove causality in environmental health litigation.On the basis of clarifying the theoretical differences between the inversion of burden of proof and the presumption of causality,China should adhere to the rule of inversion of burden of proof,establish an identification system for personal injuries caused by environmental pollution,and use methods such as epidemiological causality,indirect counterevidence,and prima facie bewies.Furthermore,the full functions of the government and social organizations must be brought into play.This will not only help victims demonstrate causality,it can also help victims achieve equitable relief.

Minimizing Environmental and Health Impacts in Developing Countries through Adoption of Sustainable Energy Options： A Case Study

An extensive review and analysis of the available global energy sources data and information from 38 countries including Pakistan, and their impacts （socio-economic, environmental, and health） shows that one of the most sustainable and environment friendly energy options （especially considering rural areas） is renewable energy （solar and wind）, while other options （in descending order） are hydro, nuclear and coal. The use of ＂oil and gas＂ as energy option is not cost effective due to its serious environmental, health and financial implications. The cost of producing 1 KWh of energy from oil and gas in Pakistan is around Rs. 20 （U.S. $ 0.19）, while the same costs for hydro power and coal are 1/10th and ~nd respectively. Appropriate and suitable energy options are proposed in view of the current energy situation, available natural resources （water, coal, wind and sun）, serious energy conservation efforts and efficient usage of available energy.

Study on Environmental Health Strategy after Earthquake

The first task in prevention of diseases after an earthquake is to quickly provide an adequate source of safe drinking water.Otherwise,the incidence of infectious intestinal diseases in the disaster area residents will increase rapidly.Additional health measures,such as disinfecting drinking water,protecting the water source,and treating disaster area residents,must be taken at the same time.The sensory test of meat is a useful index of meat decomposition levels.Corpse alkali is a kind of toxic chemical,and personal protective measures must be taken in handling corpses.In general,all of these measures are important not only for achieving the goal of“no severe epidemic after strong earthquake disaster”in the affected areas,but also for enriching knowledge of disaster medicine.1989 Academic Press.Inc.

Assessment of Phytosanitary Practices in Peri-Urban Agriculture and Associated Environmental and Health Impacts in Developing Countries: Case of Abengourou City (Côte d’Ivoire)

The use of phytosanitary products remains uncontrolled and abusive in the practice of market gardening in most developing countries. However, it remains one of the potential sources of environmental contamination and public health problems. This study examines the health and environmental risks associated with the use of phytosanitary products in market gardening in the town of Abengourou in Cote d’Ivoire. Field surveys carried out among all (30) market gardener sites housed 150 farmers showed that when the products were spread, no health and safety measures were observed. Approximately 80% of the respondents did not wear gloves or face masks. Some products used were not approved for market gardening. Farmers had itching, dizziness, headaches, colds and vomiting on a regular basis when applying the products. The study also revealed the presence of empty packaging in the surrounding surface water and on the ground. In addition to producers, this type of uncontrolled market gardening likely exposes consumers to high health risks and also contributes to environmental degradation. Raising awareness among stakeholders of good agricultural practices could help promote sustainable market gardening. However, studies of the effects of products in such an environment on the health of consumers deserve to be carried out.

Environmental health in public health community practice: An integrative review of the literature

It is understood that the performance of Public Health Nursing is indispensable for the development of sustainable health communities, with regard to sub-standard living conditions in environments that include physical, chemical and biological factors influencing these conditions. This work is in an integrative review which aims to characterize how Environmental Health appears in scientific Public Health Nursing production, for the development of community health. Out of 442 articles, 30 met the search criteria. The publications covered contamination and exposure to environmental risks;strengthening of community groups for environmental health and workforce development of public health nursing for community practice in environmental health. The results summarized in the present study support the growing trend of interest in Environmental Health as knowledge which is essential to Public Health Nursing practice in the community.

Assessment of Municipal Solid Waste Management for Better-Quality Public Health and Environmental Sustainability in the Freetown Metropolitan City in Sierra Leone

Managing waste has been an aged-old challenge, especially in developing cities, like the Freetown Metropolitan City. Solid Waste and/or waste in general is an artefact of human activities that can spring from individuals, families, community, commercial/industrial operations etc. This study is a qualitative investigation, and it is intended to gather an inclusive knowledge of solid wastes management for better public health in Freetown, the Capital City of Sierra Leone. Statistical analysis was employed to observe numerical representations on a wide range of selected data. In an attempt to achieve the aim of this research project, reviews of available online resources were exploited, and juxtaposed with everyday knowledge in the existing state of the Freetown’s municipality solid waste management. The study revealed that residents in Freetown produce an average 0.45 kg of solid waste per individual per day. It was further established that biodegradable/organic matters comprise approximately 75% to 85% of total waste stream along with assorted retired furniture, scarp metals and plastic bags as most important recyclable elements. The hitches connected with municipal solid waste management in Freetown have become palpable, spanning from the past decade to date. Among many other factors, an upsurge influx urbanisation after the 11 years brutal civil war that ended in 2001, combine up with insufficient approved dumping sites for waste disposal and institutional incapability stand out. In this project, the contemporary approach of solid waste disposal in Freetown was carefully assessed with efforts to bring out the most feasible alternatives of solid waste disposal and acclaim ways of refining its activities. It was concluded from the study that, solid wastes in the Freetown Municipality must be tackled in a synergetic approach. That is, government corroborating with private solid waste managing actors so as to enhance an excellent better-public health, sustainable environmental, urban economic development and a resourceful energy paradigm.

Legal response to environmental health risks in a risky society

The protection of public health is one of the legislative purposes of China’s environmental legal system.Article 39 of the Environmental Protection Law of the People’s Republic of China establishes an environmental and health risk assessment system.The health risk assessment system has biases in understanding,and it fails to face up to the functional transformation from the ex-post relief of environmental damage to the pre-prevention prevention of health risks in the environmental legal system;lack of a complete environmental and health legal system,unclear environmental and health risk assessment framework,and unclear environmental and health risk assessment frameworks.Health risk management capabilities need to be improved,there is a lack of specialized environmental and health risk assessment institutions,and there is a lack of supporting risk assessment technical standard system construction.It is necessary to combine practical experience with China’s national conditions and actual needs,construct an environmental health risk assessment system with Chinese characteristics from both the entity and the procedure,strengthen legislative support,and improve my country’s environmental and health laws on the basis of objective and scientific protection of the assessment process.Institutional system,establish a national environmental health risk assessment expert committee as soon as possible,improve my country’s environmental and health risk assessment framework,strengthen environmental and health management capacity building,improve the environmental and health risk assessment technical system,and promote the development of China’s environmental and health risk assessment system develop and give play to the institutional mission of safeguarding public health.

Problems Related to Divers Health and Comfort in Hyperbaric He-O_2 Environment

The Diver Gas Recovery System(DGRS)is an important accessory equipment of the 300m Saturation Dive System. The system facilitates the recycling of the breathing gases for divers,therefore,it has great economic benefits. In April 1995, a 300 m unmanned test and a 100 m manned test on the HY2031 DGRSwere carried out successively.Ten months later,another manned test on the HY2032 DGRS

Wildfire in Australia during 2019-2020, Its Impact on Health, Biodiversity and Environment with Some Proposals for Risk Management: A Review

Wildfire is closely associated with human society and having its effect on earth as well as on its environment for more than 350 million years. It is a very common phenomenon from the ancient period, has hazardous effects on both environment and human life. This study mainly focuses on the review of wildfire of Australia during 2019-2020 regarding its distribution, status of fatality influences on different environmental factors, consequences and some proposals for its mitigation. In this review paper, a modified edition of the principled review methodology was followed in compiling the most reliable data to support the bushfire in Australia belonging to its causes of occurrences and impacts. The bushfire was started in mid-June in 2019, and it is still now burning in hundreds of places of different parts of Australia, and the forest of New South Wales, Northern Territory, Western Australia, Queensland and Victoria were being burnt deadly. The accumulating data exposed the year 2019 as the driest and warmest year with lowest rainfall that might be the potential causes of bushfires in Australia. Moreover, maximum forest land of Australia is covered by naturally grown Eucalyptus trees which are generally flammable and supply oil type fuel during bushfires. Bushfire deteriorates the quality of soil, water and air of the locality up to many hundreds or thousands of kilometers away in increasing the emission of toxic substances and carbon rate. Around more than 3 billion native vertebrates, 143 million mammals, 2.46 billion reptiles, 181 million birds, 51 million frogs were burnt out by bushfires of 2020 in Australia. More than US$110 billion financial loss has been determined due to this fire of Australia. In some cases, it is also helpful for forest land. Sometimes it helps to continue the forest ecosystem by burning unwanted plants, animals and microscopic compounds. To reduce the hazard needs proper land regulation, combination of social governance, sufficient funding, permanent vigilance of all sides are the partial solutions. However, the research helps to find out an overall idea to explore the devastating nature of bushfires, the actual causes of occurrences and recommendations for mitigation of bushfires in Australia as well as assisting researchers those willing for further scientific study. It was also mentioned some effective prologues to reduce the hazardous effects and find some ways to overcome such destructive disaster.