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More places are exploring creating microgrids after a spate of hurricanes and other storms knocked out power to millions in recent years. In Puerto Rico, especially, advocates say this could help key institutions like hospitals and military bases keep the lights on when the larger grid goes down. They might want to look north — far north — for guidance.
Read the full story at EnvironmentalResearchWeb.
Pursuing sustainable irrigation without significant irrigation efficiency gains could negatively impact environmental and development goals in many areas of the world, a new study has found.
Read the full story in Triple Pundit.
It has been 10 years since Ford Motor Company rolled out the 2008 Mustang with seats comprised of soy-based foam. Since then, the automaker says it has installed this bio-based form in at least 18.5 million cars that have rolled off the company’s assembly lines.
Nina Cedergreen, Kristoffer Dalhoff, Dan Li, Michele Gottardi, and Andreas C. Kretschmann (2017). “Can Toxicokinetic and Toxicodynamic Modeling Be Used to Understand and Predict Synergistic Interactions between Chemicals?” Environmental Science & Technology Article ASAP
Abstract: Some chemicals are known to enhance the effect of other chemicals beyond what can be predicted with standard mixture models, such as concentration addition and independent action. These chemicals are called synergists. Up until now, no models exist that can predict the joint effect of mixtures including synergists. The aim of the present study is to develop a mechanistic toxicokinetic (TK) and toxicodynamic (TD) model for the synergistic mixture of the azole fungicide, propiconazole (the synergist), and the insecticide, α-cypermethrin, on the mortality of the crustacean Daphnia magna. The study tests the hypothesis that the mechanism of synergy is the azole decreasing the biotransformation rate of α-cypermethrin and validates the predictive ability of the model on another azole with a different potency: prochloraz. The study showed that the synergistic potential of azoles could be explained by their effect on the biotransformation rate but that this effect could only partly be explained by the effect of the two azoles on cytochrome P450 activity, measured on D. magna in vivo. TKTD models of interacting mixtures seem to be a promising tool to test mechanisms of interactions between chemicals. Their predictive ability is, however, still uncertain.
Read the full story at Horizon.
The straw leftover from harvested wheat could be turned into bio-based chemicals that offer high greenhouse gas savings and do not compete with food supplies or damage ecosystems.
Read the full story in Fast Company.
Planting trees is an incredibly cheap and simple way to improve the well-being of people in a city. A novel idea: Public health institutions should be financing urban greenery to support well-being and air quality.