Keywords: Galaxy environments — Active Galactic Nuclei — Galaxy chemical evolution

1. INTRODUCTION

2. DATASETS AND GALAXY SAMPLES

2.1. GASP sample

2.2. MaNGA sample

3. PHOTO IONIZATION MODELS

4. METHODS

5. RESULTS AND DISCUSSION

5.1. The effect of different extraction apertures on spatially-resolved metallicity maps

5.2. Gas-phase metallicity of the AGN in RP stripped and undisturbed galaxies

5.3. Comparison between metallicities of the nuclear regions in AGN and SF galaxies

5.4. Comparison with the literature

6. SUMMARY