Monitoring to assess progress toward meeting the Assabet River, Massachusetts, phosphorus total maximum daily load - Aquatic macrophyte biomass and sediment-phosphorus flux

Abstract

December, a weekday, no one else crossing (by way of the wet path) the bird sanctuary's yellow spongy bottomland, no duckweed any longer willow-greenfor now, the almost smoldering gas-lacy water says, it's down making turions. The way to be introduced to it is first to meet nothing. In rain a thin microscope-specimen rain. One raises a face to flooded sketchlike territories of trees, sepia, seeping; to blunt, upward bluffs of ivy, bared poison oak; a soaking place, fed by springs and floods, shallow water table strained by willows. In spring, in a more forward month, yellow-red willow-bud husks will sharpen the trail, their old pen tips, oleo-spot gulls' beaks, brighten the flat brown pond, and a man with a knife, whack, whack, righthanded down the path, will kill new twigs too new yet to be woody. But there's no duckweed until the summer when finally where a creek swims in, there's duckweed barely tugging the moss-strandy bottom, wheatcolored seed-shrimps touring in and around

Airport Deicers: An Unrecognized Source of Phosphorus Loading in Receiving Waters

“…Additionally, phosphate buffers have been used in some ADAF formulations for pH control . Phosphorus is a potent driver of eutrophication − and can cause numerous impacts on aquatic ecosystems, including nuisance plant growth, , dissolved oxygen depletion and hypoxia, − fish mortality and habitat loss, − and a loss of ecosystem services. , Excess phosphorus loading can also cause toxin-producing harmful algal blooms (HABs) in freshwater systems, − and the Wisconsin Department of Natural Resources (DNR) issued new phosphorus requirements for surface waters in 2010 . Airports are commonly required to have a stormwater discharge permit, which includes a pollution prevention plan and control measures for various types of waste.…”