Caution in using two end-member Pb isotope pollution source apportionment models

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Monitoring Lead (Pb) Pollution and Identifying Pb Pollution Sources in Japan Using Stable Pb Isotope Analysis with Kidneys of Wild Rats

Although Japan has been considered to have little lead (Pb) pollution in modern times, the actual pollution situation is unclear. The present study aims to investigate the extent of Pb pollution and to identify the pollution sources in Japan using stable Pb isotope analysis with kidneys of wild rats. Wild brown (Rattus norvegicus, n = 43) and black (R. rattus, n = 98) rats were trapped from var...

متن کامل

Source apportionment

Non-methane hydrocarbons source apportionment at different sites in Mexico City during 2002–2003 E. Vega, G. Sanchez, and L. Molina Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Nm. 152.Col, San Bartolo Atepehuacan, Delegación Gustavo A. Madero, 07730, México, D.F., Mexico Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, ...

متن کامل

Enhanced NMF initialization using a physical model for pollution source apportionment

In a previous work, we proposed an informed Non-negative Matrix Factorization (NMF) with a specific parametrization which involves constraints about some known components of the factorization. In this paper we extend the above work by adding some information provided by a physical dispersion model. In particular, we derive a special structure of one of the factorizing matrices, which provides a...

متن کامل

Source Apportionment of PM2.5 in the Metropolitan Area of Costa Rica Using Receptor Models

In this work, receptor models were used to identify the PM2.5 sources and its contribution to the air quality in residential, comercial and industrial sampling sites in the Metropolitan Area of Costa Rica. Principal component analysis with absolute principal component scores (PCA-APCS), UNIMX and positive matrix factorization (PMF) was applied to analyze the data collected during 1 year of samp...

متن کامل

Source Apportionment of Annual Water Pollution Loads in River Basins by Remote-Sensed Land Cover Classification

In this study, in order to determine the efficiency of estimating annual water pollution loads from remote-sensed land cover classification and ground-observed hydrological data, an empirical model was investigated. Remote sensing data imagery from National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer were applied to an 11 year (1994–2004) water quality...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Environment International

سال: 2021

ISSN: 0160-4120

DOI: 10.1016/j.envint.2021.106421