A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Zinc levels in suspended particulate matter in Zagreb air. | LitMetric

Monitoring of zinc in total suspended particulate matter (TSPM) started in Zagreb, Croatia in 1972 at two measuring sites, located in the city centre and in the northern part of the city. Monitoring of zinc concentrations in PM₁₀ started in the northern part of the city in 2003. The obtained data show a decreasing trend of zinc in TSPM. Over the past 3 years, the measurement of zinc in PM₁₀ particles has been performed, and the obtained data, in comparison to zinc in TSPM, have shown that 82%-93% of zinc was in the small PM₁₀ particles.

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00128-010-0142-6DOI Listing

Publication Analysis

Top Keywords

suspended particulate
8
particulate matter
8
monitoring zinc
8
northern city
8
zinc tspm
8
pm₁₀ particles
8
zinc
7
zinc levels
4
levels suspended
4
matter zagreb
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!