Widely considered a screen against contamination, clay layers may actually enhance arsenic leakage into some aquifers, study finds.
|Name||Title||Fields of interest|
|Zahid Aziz||Staff Associate||Hydrogeology, Geochemistry, Groundwater Contamination|
May 07, 2020
November 26, 2019
Typically only shallow wells have arsenic problems, but in an area of India and Bangladesh, deep wells are highly contaminated. Scientists are starting to learn why.
August 05, 2019
We added a campaign monument to the tide gauge at Khepupara on the way to our last GPS and SET installation site at Patuakhali. We faced challenges such as bad roads and broken bridges, and leeches, but got the work done. The field work was now coming to a close.
August 02, 2019
We replaced the GPS at Khulna University, then met some colleagues in Barisal. We continued to Khepupara and the beach at Kuakata for more installations. The beach on the Bay of Bengal is fresh water in the summer due to the enormous water discharge at the Ganges-Brahmaputra Delta.
July 30, 2019
Silting rivers and bad roads made it difficult to find a last site. After a successful installation and an upgrade to an existing GPS site, we left the boat for land. We then discovered the local river had washed away some of our equipment.
July 23, 2019
I am back in Bangladesh for a new project examining the balance between sea level rise, land subsidence and sedimentation. We will be installing, repairing or upgrading equipment to measure changes to the landscape.
November 12, 2018
I had one last day installing seismometers with the team, then left for Mandalay. After a breakfast with colleagues, I had a free day to explore Mandalay Hill.
November 10, 2018
With the GPS done, I joined the seismologists installing 32 stations in Myanmar. We finished the preparations and then headed out to the field in three teams.
November 06, 2018
On the way back to Kale, we stopped at a Catholic church where one of the seismometers will be deployed. The seismic team is now in Nay Pyi Taw, the capital preparing for the seismic instrument deployment.
November 03, 2018
Our next two sites were Kalewa to the east and Tedim to the west. To get to Kalewa we followed the Myittha River past the Kabaw Fault to the site with view of a monastery. Tedim is a long and windy drive through the mountainous Chin Hills.
October 30, 2018
We drove 15 hours over two days to get to Kale, our new home base. Here, we managed to build a monument and install our first GPS station in only one day. Our homemade post-driver worked amazingly well.
October 27, 2018
There may be a significant earthquake hazard in the densely populated region along the IndoBurman subduction zone. Thus, we are in Myanmar, installing five GPSes to study it.