Heavy metal remediation: Defusing the ticking chemical bomb

“Conflict” Picture made by San Jose Think about these questions: 1. Do you understand what is meant by heavy metal pollution?2. Do you know which heavy metals cause pollution? 3. Do you know which methods can control and reduce heavy metal pollution? 4. Have you ever had a heavy metal…

Baiting for Phytophthora species

White-baiting is a common pastime in Canterbury waterways. Fishing for the small delicacy requires a fine meshed net and a lot of patience. Lincoln University MSc student, Ashika Prasad, is fishing for even smaller creatures, fungal-like microorganisms called Phytophthora that, like whitebait, swim in our waterways.  Phytophthora are notorious plant…

Kicking up a stink for the beneficial re-use of biosolids

Just 5.5% of New Zealand soils have enough natural fertility for food production. Yet here in NZ, with our trademark ‘no.8 wire can-do’ attitude, you’ll find we manage to produce a very large amount of food. When you think about it though, that’s a hefty amount of no. 8 wire…

Did the Canterbury earthquakes harm more than we realise?

The 2010/2011 Christchurch earthquake sequence claimed many lives and damaged and destroyed infrastructure located in the central business district and in the city’s suburbs. As a result, many buildings were deemed structurally unsafe and were subsequently demolished or rebuilt. However, was that really everything the earthquake sequence shattered? What about…

Overseer: modelling nitrogen losses from farmland

Estimating the loss of nutrients from various land uses, and in particular intensive farming land uses, is very topical. The recently amended National Policy Statement for Freshwater Management now requires regional councils to set water quality limits for water bodies based on the value the local community feel the water…