- Toxic Organic Pollutants Impact
- Air Quality and Health Impacts
- Effects and risks of endocrine disrupting chemicals
- Atmospheric chemistry and aerosols
- Microbial bioremediation and biosurfactants
- Heavy metals in environment
- Pesticide Exposure and Toxicity
- Microplastics and Plastic Pollution
- Pesticide and Herbicide Environmental Studies
- Recycling and Waste Management Techniques
- Municipal Solid Waste Management
- Environmental Toxicology and Ecotoxicology
- Carcinogens and Genotoxicity Assessment
- Atmospheric Ozone and Climate
- Climate variability and models
- Pharmaceutical and Antibiotic Environmental Impacts
- Geochemistry and Geologic Mapping
- Mercury impact and mitigation studies
- COVID-19 impact on air quality
- Healthcare and Environmental Waste Management
- Pesticide Residue Analysis and Safety
- Groundwater flow and contamination studies
- Microbial Community Ecology and Physiology
- Environmental Justice and Health Disparities
- Energy and Environment Impacts
COMSATS University Islamabad
2017-2025
Hong Kong Polytechnic University
2017-2023
National Institute of Meteorology
2022
Chinese Academy of Sciences
2014-2017
Guangzhou Institute of Geochemistry
2014-2017
Quaid-i-Azam University
2010-2014
Abstract The chronic nature of coronavirus disease (COVID-19) outbreak and lack success in treatment cure is creating an environment that crucial for mental wellbeing. Presently, we extracted classified sentiments emotions from 141,208 headlines global English news sources regarding the (COVID-19). considered were those carrying keyword between time frame 15 Janaury, 2020 to 3 June, top rated 25 sources. into positive, negative neutral after calculation text unbounded polarity at sentence...
Abstract Sixteen parent PAHs and twelve nitro-PAHs were measured in PM2.5 samples collected over one year (2013–2014) at nine urban sites China. During the sampling period, concentrations of individual or two orders magnitude lower than their PAHs. Typical seasonal variations PAH concentrations, which increased 10- to 80- fold winter compared summer, observed this study. Conversely, mean atmospheric similar all four seasons, with exception 9-nitroanthracene (9n-Ant). Compared other secondary...
Informal e-waste recycling activities have been shown to be a major emitter of organic flame retardants (FRs), contributing both environmental and human exposure laborers at sites in some West African countries, as well China India. The main objective this study was determine the levels selected FRs air soil samples collected from areas with intensive informal Karachi, Pakistan. Dechlorane Plus (DP) "novel" brominated (NBFRs) were often detected high concentrations soils, while...
Production and use of chlorinated paraffins (CPs) have been increasing in India. Distribution CPs the area vicinity become a great concern due to their persistency toxicity. Polyurethane foam based passive air samplers (PUF-PAS) was deployed order screen presence short- medium- chain (SCCPs MCCPs) outdoor atmosphere at many sites India (in winter 2006) Pakistan 2011). Concentrations SCCPs MCCPs ranged from not detected (ND) 47.4 0 38.2 ng m(-3) with means 8.11 4.83 m(-3), respectively....