Should I mix integral and non-integral citations?

PM2.5 air pollution may be one of the most important contributing factors to the global increase in lung cancer.^WV Research suggests that as air pollution has increased in Asia, so too have the number of respiratory conditions being reported.^WV As Smith (2012) explains, there has been a 250% increase in PM2.5 emissions in India in the last 10 years alone, correlating with a 85% increase in lung-cancer diagnoses.^SV These findings indicate that PM2.5 emissions and lung cancer are inextricably linked (Jones, 2017).^MV Indeed, Lee and Lee (2014) argue that by spending only one hour per day in air that is higher than 100 on the PM2.5 scale, people are up to 20% more likely to report significant respiratory conditions in later life.^SV However, whether there are other variables causing these health disorders is currently unclear.^WV Because most studies were conducted in areas that additionally had high concentrations of Volatile Organic Compounds (Snow et al., 2018), such VOCs may be just as detrimental to health as PM2.5.^MV At this stage, more research is required into both PM2.5 and VOCs to determine how these impact a person’s long-term respiratory health.^WV

Having now explored both integral and non-integral citation types, students may next wish to complete our Chapter 2 activities to check their progress and understanding of these topics. Following those activities, our third and final chapter on citation types focuses on recognising, using and understanding both multiple-source and secondary citation types.

Please note: while there are many different possible referencing styles such as APA or Chicago, all examples demonstrated in this chapter are of the Harvard Style of referencing as described in the book Cite Them Right.