Monitoring and reporting on the state of the regional environment is a core activity for the Council.
Air quality
Air quality is regularly tested in areas determined to be 'worst-case scenario' checkpoints.
Air monitoring survey at NPGHS near major road works 2015 (318 KB pdf) More reportsAir quality - nitrogen oxides (NOx) levels
The Council reports annually on its co-ordinated region-wide monitoring programme to measure nitrogen oxides.
Nitrogen oxides (NOx) levels in Taranaki 2016-17 (783 KB pdf) Earlier reportsCoastal bathing beaches
Water quality at popular coastal beaches is regularly monitored over the summer swimming season from October to March. Results are generally excellent.
Summer 2016-2017 (3.6 MB pdf) Earlier reportsFreshwater recreational bathing
Water quality at popular freshwater bathing sites is monitored over the summer season from October to March, with results available to the public.
Summer 2016-2017 (4.1 MB pdf) Earlier reportsFreshwater ecological health
Ecological health is assessed using an internationally recognised index based on tiny animals – including insects, crustaceans, molluscs, worms and leeches – called macroinvertebrates. The index is called the Macroinvertebrate Community Index, or MCI. The Council uses the MCI at 59 key sites on 26 rivers and streams.
Annual report 2015-2016 (6.3 MB pdf) Earlier reportsFreshwater physical & chemical state
Physical and chemical ('physicochemical') measurements are used to assess pressures on the health of rivers. The measures include bacteria levels, water clarity, conductivity and acidity (pH levels), nutrient levels, dissolved oxygen levels and the amount of oxygen consumed in the breakdown of organic matter. In all, there are 13 individual measures, which the Council now monitors at 13 sites.
Annual report 2015-2016 (3.9 MB pdf) Earlier reportsPeriphyton (algae)
Algae (periphyton) provide much of the food/energy for aquatic ecosystems. But excessive algae has adverse effects on aquatic habitats and aesthetics. The Council monitors long strands (filaments) and mats of periphyton at 21 sites.
Report 2014-2016 (3.5 MB pdf) Earlier reportsGroundwater
The level and composition of groundwater are monitored to ensure there is no adverse effect from human activity.
Groundwater quality report 2016-2017 (2.1 MB pdf) Earlier reportsRocky shore
Six representative reef sites are monitored twice a year to gather data for this reporting.
Monitoring report 2015-2017 (2.9 MB pdf) Earlier reportsLake Rotorangi
The Council monitors the water quality and ecological health of Lake Rotorangi, which was formed when the Patea hydro scheme was established on the Patea River at Hurleyville in the 1980s.
Annual report 2015-2016 (2.9 MB pdf) Earlier reports