Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois: Regulated Substances Library Data

Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois: Appendices

10.36501/0197-9191/21-007 ◽

2021 ◽

Author(s):

Andrew Anderson ◽

◽

Mark Yacucci ◽

Keyword(s):

Soil Chemistry ◽

Environmental Concern ◽

Department Of Transportation ◽

Background Concentrations ◽

Statistical Characterization ◽

Site Investigations ◽

Subsurface Soil ◽

Soil Constituents ◽

Selection Of

This report presents detailed histograms of data from the Regulated Substances Library (RSL) developed by the Illinois Department of Transportation (IDOT). RSL data are provided for state and IDOT region, IDOT district, and county spatial subsets to examine the spatial variability and its relationship to thresholds defining natural background concentrations. The RSL is comprised of surficial soil chemistry data obtained from rights-of-way (ROW) subsurface soil sampling conducted for routine preliminary site investigations. A selection of 22 inorganic soil analytes are examined in this report: Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Hg, Ni, K, Se, Na, Tl, V, and Zn. RSL database summary statistics, mean, median, minimum, maximum, 5th percentile, and 95th percentile, are determined for Illinois counties and for recognized environmental concern, non-recognized environmental concern, and de minimis site contamination classifications.

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Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois

10.36501/0197-9191/21-006 ◽

2021 ◽

Author(s):

Andrew Anderson ◽

◽

Mark Yacucci ◽

Keyword(s):

Soil Chemistry ◽

Environmental Concern ◽

Department Of Transportation ◽

Statistical Characterization ◽

Site Investigations ◽

Naturally Occurring ◽

Subsurface Soil ◽

Soil Constituents ◽

Selection Of

This report presents a statistical analysis of the Regulated Substances Library (RSL) developed by the Illinois Department of Transportation. The RSL is comprised of surficial soil chemistry data obtained from rights-of-way subsurface soil sampling conducted for routine preliminary site investigations. The 3.7-million-record RSL database is compared with four independent studies of inorganic soil constituents of naturally occurring soils in Illinois. A selection of 22 inorganic soil analytes are examined in this study: Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Hg, Ni, K, Se, Na, Tl, V, and Zn. RSL database summary statistics, mean, median, minimum, maximum, 5th percentile, and 95th percentile, are determined for Illinois counties and for recognized environmental concern, non-recognized environmental concern, and de minimis site contamination classifications. The RSL database at a 95% confidence level is compared with current and proposed thresholds for defining naturally occurring soil concentrations for the selected analytes. The revised thresholds proposed by Cahill in 2017 are predominantly larger than the current standards found in the Tiered Approach to Corrective Action Objectives rules and are in better agreement with observed distributions of soil concentrations for both naturally occurring and RSL soils. A notable exception is antimony (Sb), for which Cahill proposed a reduced threshold similar in magnitude to the median for many Illinois Department of Transportation districts.

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Statistical Characterization of Harmonic Emissions in Power Supply Systems

International Review of Electrical Engineering (IREE) ◽

10.15866/iree.v9i4.1099 ◽

2014 ◽

Vol 9 (4) ◽

pp. 803 ◽

Cited By ~ 4

Author(s):

Diego Bellan

Keyword(s):

Power Supply ◽

Statistical Characterization ◽

Supply Systems

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Statistical Characterization of Fish School Clutter

10.21236/ada472811 ◽

2007 ◽

Author(s):

Timothy K. Stanton ◽

Dezhang Chu

Keyword(s):

Statistical Characterization ◽

Fish School

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Critical Review of EMC Standards for the Measurement of Radiated Electromagnetic Emissions from Transit Line and Rolling Stock

Energies ◽

10.3390/en14030759 ◽

2021 ◽

Vol 14 (3) ◽

pp. 759

Author(s):

Andrea Mariscotti

Keyword(s):

Time Distribution ◽

Communication Systems ◽

Electromagnetic Compatibility ◽

Transportation Systems ◽

Operating Conditions ◽

Rolling Stock ◽

Intrinsic Variability ◽

Statistical Characterization ◽

Electromagnetic Emissions

Accurate and comprehensive methods for the assessment of radiated electromagnetic emissions in modern electric transportation systems are a necessity. The characteristics and susceptibility of modern victim signaling and communication radio services, operating within and outside the right-of-way, require an update of the measurement methods integrating or replacing the swept frequency technique with time domain approaches. Applicable standards are the EN 50121 (equivalent to the IEC 62236) and Urban Mass Transport Association (UMTA) with additional specifications from project contracts. This work discusses the standardized methods and settings, and the representative operating conditions, highlighting areas where improvements are possible and opportune (statistical characterization of measurement results, identification and distinction of emissions and line resonances, and narrowband and broadband phenomena). In particular for the Electromagnetic Compatibility (EMC) assessment with new Digital Communication Systems, the characterization of time distribution of spectral properties is discussed, e.g., by means of Amplitude Probability Distribution and including time distribution information. The problem of determination of site and setup uncertainty and repeatability is also discussed, observing on one hand the lack of clear indications in standards and, on the other hand, the non-ideality and intrinsic variability of measurement conditions (e.g., rolling stock operating conditions, synchronization issues, and electric arc intermittence).

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