Pollution characteristics, risk assessment, and source apportionment of potentially toxic elements in road dust at two industrial parks in Trinidad and Tobago, West Indies.

Potentially toxic elements can enter the environment through natural and anthropogenic processes, with the latter considered the primary contributor. Road dust samples from two industrial parks on the island of Trinidad were investigated for heavy metal content, and the pollution status, potential health risks, and source apportionment were evaluated. Samples were acid-digested and analysed by flame atomic absorption spectroscopy.

The epidemiology of unplanned pregnancies in North-Central Trinidad.

Objective: to investigate the epidemiology of unplanned pregnancies in North-Central Trinidad and to evaluate the effect of level of education, marital status, religion, ethnicity, economics, and socioeconomic factors on the use of contraceptives in the society.

Method: A cross-sectional study was conducted between April and May 2007 at four primary health care facilities in Trinidad using a de novo pilot-tested questionnaire.

Results: Of the 172 participants, 103 had unplanned pregnancies (64.