“…Given the conceptual complexity of PHS, thisdespite not being a scientific consensus (VILELA; SANTOS; KEMP, 2017)is articulated in four fields so-called epidemiological surveillance (SEpi), sanitary surveillance (SSan), environmental health surveillance (SEnv), and occupational health surveillance (SOcc). Several authors ASSIS et al, 2017;DONATELI, 2017;FRANCO NETTO et al, 2017;LIMONGI et al, 2017; OLIVEIRA; CRUZ, 2015; PINTO JUNIOR; CERBINO NETO; PENNA, 2014; RECKTENWALDT; JUNGES, 2017; SILVA; CARVALHO, 2017; OKUMOTO; BRITO; GARCIA, 2018) support such an approach, and, therefore, NHSP defines them as: X -Environmental health surveillance: the set of actions and services that provide knowledge and detection of changes in the determining and conditioning factors of the environment that interfere with human health, to recommend and adopt measures to promote health, prevention, and monitoring of risk factors related to diseases or health conditions. XI -Occupational health surveillance: the set of actions for promoting health, preventing morbidity and mortality, and reducing risks and vulnerabilities in workers by integrating solutions to prevent diseases and their determinants derived from development models, production processes, and work.…”