We investigated variation in the proinflammatory potential of ambient fine and coarse PM collected at sites with varying source (traffic, wood burning) contributions by examining AA release and IL-6/TNFα production in response to exposure in a murine macrophagic cell line.
Notable exceptions include a coarser sample collected from a channel (sample 26 in Fig. 4(A)) and a finer sample found in a sheltered environment next to a bedrock outcrop (sample 36 in Fig. 4(A)).
Every other morning, when the weather is right, they harvest gros sel marin gris, or gray coarse sea salt, a moist and coarse salt that collects on the lining of the clay ponds, gray from the nutrients that sit in the clay.
The team collected coarse sand--typical of shallower habitats at the canyon's mid-water mouth, a definite burying hazard.
The first stage of the separator is a settling chamber which is designed to collect coarse particles (particles down to particle diameter 100 μm).
The typical grain size of the Tanzawa zircon ranges from 50 to 200 μm (Suzuki et al. 2014), and we selectively collected coarse zircon crystals larger than 150 μm in size.
The first dataset came from first-generation satellite sensors that have coarse resolution and collect data about once a month, whereas the second dataset comes from a newer satellite with sensors that have much better resolution and take measurements every 10 days.
We found significant associations between urinary 8-OHdG at 1 hr postexposure and coarse and ultrafine CAPs, and endotoxin collected with coarse CAP.
The coarser wash borings collected at Birganj contain more quartz and less plagioclase (61±4 and 14±3%; n = 6) compared to Araihazar and Lakshmipur (48±3 and 23±1%; n = 12), but the chemical composition of wash borings from all sites does not differ enough to discern distinct provenances (see Supporting Information).
Mice aspirated 100 μg each of coarse, fine, or ultrafine PM collected from both NR and FR collection sites.
