The pervasive challenge of heavy metal pollution in water necessitates urgent interventions to mitigate chromium contamination. It poses significant threats to human health, aquatic ecosystems, and the environment. This research delves into the potential of date palm waste as a precursor of adsorbent for extraction of chromium from contaminated water, underscoring its potential in heavy metal remediation. Date palm waste, traditionally regarded as agricultural waste, underwent modification employing N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride resulting in quaternized date palm waste (QDPW) as a prospective adsorbent for chromium extraction. The characterization techniques, including FTIR, SEM/EDX, BET, XRD, TGA/DTA, and element analysis, were employed to examine the structural and surface properties of both DPW and QDPW fibers. Optimal chromium uptake was achieved at a solution pH 6.5 over two hours, with a peak removal efficiency of 88% and an adsorption capacity of 22.26 mg/g. The equilibrium isotherms studies are consistent with Langmuir, Redlich-Peterson, and Sips isotherms, presenting a coefficient of determination (R²) of 0.989, 0.981, and 0.983, respectively. Moreover, the pseudo-second-order model was mostly aligned with the kinetics data with R² value of 0.999. These findings showed that the quaternized date palm waste can be considered a good option to recycle the date palm waste and reduce the environmental threats in aqueous solution.

This comprehensive critical review shows how green buildings and energy optimization solutions improve indoor air quality as well as environmental quality (IEQ) and human health. Electricity-efficient green buildings create a better indoor atmosphere and save electricity. Green buildings improve occupant well-being through IAQ, thermal comfort, acoustics, and lighting. Renewable energy, green construction materials, and intelligent technologies increase sustainability and reduce environmental impact. Environmental hazards, architectural design, and societal variables can improve indoor air quality and subsequently reduce health risks linked with poor air quality. The evaluation highlights the pros and cons of low-cost IAQ sensors and equipment. These devices provide valuable insights, but calibration and validation using reference equipment are necessary to ensure accuracy and reliability. Architects, engineers, environmentalists, and policymakers are essential in creating green buildings with high IEQ. Prioritizing occupant comfort, health, and productivity ensures a sustainable and healthy future for future generations. However, continual monitoring and research are needed to improve green building practices and overcome construction problems. Intelligent models for continual on-field calibration of low-cost sensors may improve performance. Green buildings benefit occupants and the environment by optimizing energy use and using IAQ monitoring technologies.

The construction industry offers employment to about one hundred eighty million people worldwide. The construction sector has grown and evolved to meet the demands of urbanization and industrialization, which are the foundation of the modern economy. Construction is still seen as a risky and difficult industry, with the most hazardous and vulnerable work environment, even with the industry's notable improvements. Pakistan's construction industry is known for its high level of risk, which makes strict safety procedures necessary to protect the health and safety of its workforce. This research seeks to understand the impact of safety leadership on safety practices and identify key factors influencing safety culture. In order to provide comprehensive insights, the research uses a mixed-methods approach that combines quantitative surveys and qualitative interviews. The validity and reliability of the results are ensured by thorough experimentations of the statistical methods such as reliability test, relative importance index (RII), and descriptive analysis tests. In order to effectively promote safety practices, management commitment, employee involvement, safety training, and good communication are essential. An in-depth examination of the relationship between management commitment and safety performance reveals how effective leadership and proactive participation improve safety results. The results shows that safety leadership is crucial to encourage safety procedures in Pakistan's construction sector by 68.81%, success factor for safety management by 65.42%, safety management practices by 64.32%, safety performance by 63.35%, barriers to effective safety management 62.47% and safety culture by 61.46%. Strengthening frameworks for regulations, promoting a safety-first culture, investing more in safety equipment, improving worker safety training, improving monitoring and evaluation mechanisms, fostering communication and collaboration, and addressing cultural barriers are just a few of the recommendations.