pm10nh: Pb isotope ratio data in the Northen Hemisphere.

In andreabz/pbratios: Processing Pb isotope ratio data

Description

Pb isotope ratio data measured in PM10 from different countries in the Northern Hemisphere. This dataset is used internally by the function isoplot.pm10.

Usage

pm10nh

Format

A data.table with 169 observations and 9 columns. The columns are:

Sample

Sample name or sampling location.

Pb20x20y

Six columns reporting Pb isotope ratio values for the ratios 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb, 206Pb/207Pb, 207Pb/206Pb and 208Pb/206Pb.

Ref

Reference number indicating the source of the data. A list of references is reported at the "Source" section of this document.

area

A factor label for the geographical area of the sample.

Source

Data sources are indicated by the column Ref:

1. Bollhofer and Rosman, Isotopic source signatures for atmospheric lead: The Northern Hemisphere. Geochimica et Cosmochimica Acta, 2001, 65, 1727-1740.

2. Carignan, Simonetti and Gariepy, Dispersal of atmospheric lead in northeastern North America as recorded by epiphytic lichens. Atmospheric Environment, 2002, 36, 3759-3766.

3. Mukai, Machida, Tanaka, Vera and Uematsu, Lead isotope ratios in the urban air of eastern and central Russia. Atmospheric Environment, 2001, 35, 2783-2793.

4. Mukai, Tanaka and Fujii, Regional Characteristics of Sulfur and lead isotope ratios in the atmosphere at several chinese urban sites. Environmental Science and Technology, 2001, 35, 1064-1071.

5. Zhu, Tang, Lee, Zhang and Zhang, Lead concentrations and isotopes in aerosols from Xiamen, China. Marine Pollution Bulletin, 2010, 60, 1946-1955.

Examples

data(pm10nh)
summary(pm10nh)

andreabz/pbratios documentation built on May 12, 2019, 2:42 a.m.