Chemistry · Level 1 · Foundation
Microplastics in Spanish Table Salt
Iñiguez ME, Conesa JA, Fullana A (2017). Scientific Reports. doi:10.1038/s41598-017-09128-x · CC BY 4.0
Step 1 of 2Read the paper
The authors bought 21 table salts made in Spain, both sea salts and inland well salts, and checked them for microplastics. They dissolved the salt, filtered the solution, counted plastic particles under a microscope and identified the type of plastic with infrared spectroscopy. They also sampled salt before and after grinding and packing to look for where the plastic comes from.
How to read it
- Read the abstract and the last paragraph of the Introduction to see the aim and why earlier salt studies disagreed.
- Table 1 is the core result: one row per salt sample with particles per kg and its ± range.
- In Methods, note the filter pore size, the triplicate repeats and the procedural blank.
- Check the 2018 Author Correction (linked on the article page), which softens the comments about Karami et al.
Step 2 of 2Take the test
5 questions · about 30 minutes including reading · pick an answer to see straight away if it’s right. Nothing is saved.
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Paper: Iñiguez ME, Conesa JA, Fullana A, Scientific Reports (2017), licensed CC BY 4.0. Summary and questions are Research Nest’s own; read the original for the full study.