![Improved correction method for using passive air samplers to assess the distribution of PCNs in the Dongjiang River basin of the Pearl River Delta, South China - ScienceDirect Improved correction method for using passive air samplers to assess the distribution of PCNs in the Dongjiang River basin of the Pearl River Delta, South China - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1352231012000647-gr2.jpg)
Improved correction method for using passive air samplers to assess the distribution of PCNs in the Dongjiang River basin of the Pearl River Delta, South China - ScienceDirect
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