Air quality modeling in the metropolitan area of São Paulo, Brazil: A review [0.03%]
巴西圣保罗都市区空气质量模拟研究进展综述
Mario Gavidia-Calderón,Daniel Schuch,Angel Vara-Vela et al.
Mario Gavidia-Calderón et al.
Numerous studies have used air quality models to estimate pollutant concentrations in the Metropolitan Area of São Paulo (MASP) by using different inputs and assumptions. Our objectives are to summarize these studies, compare their perform...
The performance of an inexpensive spark-induced breakdown spectroscopy instrument for near real-time analysis of toxic metal particles [0.03%]
一种廉价的火花诱导击穿光谱仪用于有毒金属颗粒的近实时分析性能研究
Hanyang Li,Leonardo Mazzei,Christopher D Wallis et al.
Hanyang Li et al.
To meet the demand for identifying and controlling toxic air contaminants in environmental justice communities, we have recently developed a cost-effective spark-induced breakdown spectroscopy (SIBS) instrument for detecting and quantifying...
Evaluation of Thermal Optical Analysis (TOA) using an aqueous binary mixture [0.03%]
热光学分析(TOA)法评价及水溶液二元混合体系研究
Courtney D Grimes,Joseph M Conny,Russell R Dickerson
Courtney D Grimes
Thermal-Optical Analysis (TOA), a commonly implemented technique used to measure the amount of particulate carbon in the atmosphere or deposited on a filter substrate, distinguishes organic carbon (OC) from elemental carbon (EC) through the...
Elizabeth A W Chan,Neal Fann,James T Kelly
Elizabeth A W Chan
Epidemiologic studies have consistently observed associations between fine particulate matter (PM2.5) exposure and premature mortality. These studies use air quality concentration information from a combination of sources to estimate pollut...
Towards quantifying atmospheric dispersion of pesticide spray drift in Yuma County Arizona [0.03%]
亚利桑那州尤马县农药漂移大气扩散的定量研究
Sunyi Yuan,Avelino F Arellano,Lauren Knickrehm et al.
Sunyi Yuan et al.
While pesticide vapor and particles from agricultural spray drift have been reported to pose a risk to public health, limited baseline ambient measurements exist to warrant an accurate assessment of their impacts at community-to-county-wide...
Development and performance evaluation of online monitors for near real-time measurement of total and water-soluble organic carbon in fine and coarse ambient PM [0.03%]
用于环境细颗粒物和粗颗粒物中总有机碳及水溶性有机碳在线实时监测仪器的开发与性能评估
Yashar Aghaei,Mohammad Aldekheel,Ramin Tohidi et al.
Yashar Aghaei et al.
In this study, we developed two online monitors for total organic carbon (TOC) and water-soluble organic carbon (WSOC) measurements in fine (dp < 2.5μm) and coarse (2.5μm < dp < 10μm) particulate matter (PM), respectively. Their performa...
Using land use variable information and a random forest approach to correct spatial mean bias in fused CMAQ fields for particulate and gas species [0.03%]
利用土地使用变量信息和随机森林方法校正融合CMAQ场中颗粒物和气体种类的空间平均偏差
Niru Senthilkumar,Mark Gilfether,Howard H Chang et al.
Niru Senthilkumar et al.
Accurate spatiotemporal air pollution fields are essential for health impact and epidemiologic studies. There are an increasing number of studies that have combined observational data with spatiotemporally complete air pollution simulations...
Cloud and fog deposition: Monitoring in high elevation and coastal ecosystems. The past, present, and future [0.03%]
云和雾沉降：高山和沿海生态系统的过去、现在及未来的监测
Selma Isil,Jeffery Collett Jr,Jason Lynch et al.
Selma Isil et al.
Collection methods critical load values and total nitrogen budgets for high-elevation and fog-impacted sites requires reliable cloud and fog water deposition estimates. The cost and labor intensity of cloud/fog water sample collection have ...
Evaluation of Calibration Approaches for Indoor Deployments of PurpleAir Monitors [0.03%]
紫空气监测器室内部署校准方法评估
Kirsten Koehler,Megan Wilks,Tim Green et al.
Kirsten Koehler et al.
Low-cost air quality monitors are growing in popularity among both researchers and community members to understand variability in pollutant concentrations. Several studies have produced calibration approaches for these sensors for ambient a...
Characterizing variations in ambient PM2.5 concentrations at the U.S. Embassy in Dhaka, Bangladesh using observations and the CMAQ modeling system [0.03%]
利用观测和CMAQ模型系统表征孟加拉国达卡美国大使馆周边PM2.5浓度的变化特征
Golam Sarwar,Christian Hogrefe,Barron H Henderson et al.
Golam Sarwar et al.
We analyze hourly PM2.5 (particles with an aerodynamic diameter of ≤ 2.5 μm) concentrations measured at the U.S. Embassy in Dhaka over the 2016 - 2021 time period and find that concentrations are seasonally dependent with the highest occu...