Open Access. Powered by Scholars. Published by Universities.®
- Keyword
Articles 1 - 2 of 2
Full-Text Articles in Environmental Sciences
Spatial-Temporal Patterns Of Ambient Fine Particulate Matter (Pm 2.5) And Black Carbon (Bc) Pollution In Accra, Abosede S. Alli, Sierra N. Clark, Allison Hughes, James Nimo, Josephine Bedford-Moses, Solomon Baah, Jiayuan Wang, Jose Vallarino, Ernest Agyemang, Benjamin Barratt
Spatial-Temporal Patterns Of Ambient Fine Particulate Matter (Pm 2.5) And Black Carbon (Bc) Pollution In Accra, Abosede S. Alli, Sierra N. Clark, Allison Hughes, James Nimo, Josephine Bedford-Moses, Solomon Baah, Jiayuan Wang, Jose Vallarino, Ernest Agyemang, Benjamin Barratt
Environmental Health Sciences Faculty Publication Series
Sub-Saharan Africa (SSA) is rapidly urbanizing, and ambient air pollution has emerged as a major environmental health concern in growing cities. Yet, effective air quality management is hindered by limited data. We deployed robust, low-cost and low-power devices in a large-scale measurement campaign and characterized within-city variations in fine particulate matter (PM2.5) and black carbon (BC) pollution in Accra, Ghana. Between April 2019 and June 2020, we measured weekly gravimetric (filter-based) and minute-by-minute PM2.5 concentrations at 146 unique locations, comprising of 10 fixed (similar to 1 year) and 136 rotating (7 day) sites covering a range of land-use and source …
Understanding The Combined Impacts Of Weeds And Climate Change On Crops, Montserrat Vilà, Evelyn M. Beaury, Dana M. Blumenthal, Bethany A. Bradley, Regan Early, Brittany B. Laginhas, Alejandro Trillo, Jeffery S. Dukes, Cascade J. B. Sorte, Inés Ibáñez
Understanding The Combined Impacts Of Weeds And Climate Change On Crops, Montserrat Vilà, Evelyn M. Beaury, Dana M. Blumenthal, Bethany A. Bradley, Regan Early, Brittany B. Laginhas, Alejandro Trillo, Jeffery S. Dukes, Cascade J. B. Sorte, Inés Ibáñez
Environmental Conservation Faculty Publication Series
Crops worldwide are simultaneously affected by weeds, which reduce yield, and by climate change, which can negatively or positively affect both crop and weed species. While the individual effects of environmental change and of weeds on crop yield have been assessed, the combined effects have not been broadly characterized. To explore the simultaneous impacts of weeds with changes in climate-related environmental conditions on future food production, we conducted a meta-analysis of 171 observations measuring the individual and combined effects of weeds and elevated CO2, drought or warming on 23 crop species. The combined effect of weeds and environmental change tended …