| EuroLifeNet Photos Index-06 (Measures November 2006 - I) |
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| E.S. Ponte de Lima, Lab | E.S. Ponte de Lima, Lab | ESMAVC class while measuring PM2.5 |
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| E.S. Ponte de Lima, filters | E.S. Ponte de Lima, filters | E.S. Ponte de Lima, filters |
| CITIDEP - Research Center on Information Technologies and Participatory Democracy |