Sentence examples for road sediments from inspiring English sources

Compared to baseline Pb concentrations of <3 mg/kg, road sediments averaged 186 mg/kg, with a maximum value of 3140 mg/kg.

Al-normalized enrichment ratios (ERs) for the <63 μm fraction indicated that the watershed was significantly polluted in the lower, urbanized reaches, with maximum ER values of 560 and 94 for Pb in road sediments and stream sediments, respectively.

An in-depth study was designed to determine the influence of road sediments and storm sewers on bioavailable (0.5 M HCl) trace metal concentrations in bed sediments of Nuuanu stream, Oahu.

Zuo et al. 2012) found Cu-organic fraction to be 17.61% in road sediments.

Finally, fluoranthene is one of the most ubiquitous PAH and is found at high concentrations in road sediments [ 57].

Traffic, precipitation intensity, and road segment area had the greatest effects on road sediment production.

In the first two years after decommissioning the median road sediment production was zero kg m−2, as the furrows created by ripping trapped nearly all of the eroded sediment.

If we view roads as the source of the sediments, then reducing road density will reduce road sediment.

Minimizing road density did not reduce road sediment because the existing road network (see Figure 4, left) routes most of the haul traffic (see Figure 4, right) onto roads that closely parallel the stream network (see Figure 5).

Road deposited sediments (RDS) are a valuable environmental medium for characterizing contaminant levels in urban areas; and their associated potentially toxic elements (PTEs) can directly impact both human and aquatic health.

Samples of road-deposited sediments (RDS) were collected from 50 study sites at seven LID construction stages and four road hierarchies to analyze the pollution process and determine the size of the region influenced by LID construction.