English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Polycyclic aromatic hydrocarbons (PAHs) and particulate matter (PM) exhibit a slightly positive correlation. Results showed that PAHs and PM2.5 occurred in the following order of areas: urban &gt; suburban &gt; rural. The light-ring PAHs accounted for higher percentage than the heavy-ring ones in PM2.5. Coal burning, human activities, and industrial pollutants were major sources of PAHs in the urban area according to the ratio of specific toxic PAH compounds. Traffic release and coal burning were predominant integrative sources in suburban areas. In rural areas, the contribution of PAH pollution may originate from coal burning and human activities as the result of long-range transportation from urban and suburban areas.

Research of the pollution characteristics of PAHs in air particulate pollutants