A5084675776- Air Quality and Health Impacts
- COVID-19 impact on air quality
- Air Quality Monitoring and Forecasting
- Atmospheric chemistry and aerosols
- Climate Change and Health Impacts
- Heavy metals in environment
- Vehicle emissions and performance
- Mercury impact and mitigation studies
- Environmental Impact and Sustainability
- Heavy Metal Exposure and Toxicity
City College of New York
2021-2023
Center for Discovery
2021-2022
Columbia University
2021
Significance Direct measurements of atmospheric deposition gaseous elemental mercury (GEM) over a temperate forest showed pronounced annual 25.1 µg ⋅ m −2 , which dominated as source mercury. GEM was five times greater than wet and three litterfall deposition, has been used proxy for until now. Measured is driven by combined plant uptake underlying floor uptake. Global forests may be much larger global sink currently assumed, explain high levels in soils across forests. Forest mobilizes via...
The COVID-19 pandemic created an extreme natural experiment in which sudden changes human behavior and economic activity resulted significant declines nitrogen oxide (NO x ) emissions, immediately after strict lockdowns were imposed. Here we examined the impact of multiple waves response phases on dioxide (NO2) dynamics role meteorology shaping relative contributions from different emission sectors to NO2 pollution post-pandemic New York City. Long term (> 3.5 years), high frequency...
Nitrogen dioxide (NO2) pollution remains a serious global problem, particularly near highly populated urbanized coasts that face increasing challenges with climate change. Yet, the combined impact of urban emissions, transport, and complex meteorology on spatiotemporal dynamics NO2 along heterogeneous coastlines poorly characterized. Here, we integrated measurements from different platforms - boats, ground-based networks, aircraft, satellites to characterize total column (TCNO2) across...
Abstract. The COVID-19 pandemic created an extreme natural experiment in which sudden changes human behavior and economic activity resulted significant declines nitrogen oxide (NOx) emissions, immediately after strict lockdowns were imposed. Here we examined the impact of multiple waves response phases on dioxide (NO2) dynamics role meteorology shaping relative contributions from different emission sectors to NO2 pollution post-pandemic New York City. Long term (> 3.5 years), high...