Page 403 to 408: Gaëlle Guillossou – Great smog in London: 70 years of awareness of air quality health issues | Page 409 to 418: Marie Walter, Laure Fiquet and Arnaud Maury – Climate change and health: opinions of general practitioners and patients in French Polynesia | Pages 419 to 431: Alice Micolier, Corentin Berger, Benjamin Rigault, Didier Lepelletier, Jean-Louis Roubaty and Maxence Mendez – Identification of effective ventilation strategies to reduce the risk of Covid-19 infection inside buildings using the model digital multizone INDALO® | Pages 432 to 444: Jean-Noël Jaubert – Method for researching the elements of indoor air pollution in an establishment open to the public and the cause of staff disturbances | Page 445 to 455: Anthony Tchékémian – In France and England, a return to the land and to the local is one of the traditional responses to crises | Page 457: Jean-Claude André – Chemicals in European Residences Part I: Review of Emissions, Concentrations and Health Effects of Volatile Organic Compounds (VOCs) | Page 458: Jean-Claude André – Indoor air pollution and the health of vulnerable groups: a systematic review focusing on particulate matter (PM), volatile organic compounds (VOCs) and their effects on children and people with lung diseases pre-existing | Page 459 to 460: Elisabeth Gnansia – Need to take into account the role of the intestinal microbiota in the contemporary mental health and well-being of new adults | Pages 461 to 463: Jean-Claude André – Words for words around “misunderstanding”, “equivocation”, “misunderstanding”, “implied”, “ambiguity”, “disagreement”, “misunderstanding”, “divergence”, ” dispute” or “imbroglio” and other approximate synonyms! | Pages 464 to 468: Denis Zmirou-Navier – National commission for ethics and alerts in public health and the environment (CNDAspe) | Page 469 to 472: Laurence Clasquin – Legislation | Page 473 to 478: Published works | Page 479 to 480: Notepad.