Table 6 Ranking of the top 10 most highly productive institutions in the field of pharmaceutical wastewater research during the period of the study

1^st

King Saud University

KSA

13(7.3)

2^nd

National Research Centre

Egypt

10(5.6)

3^rd

King Abdulaziz University

KSA

9(5.0)

4^th

CSIC - Instituto de Diagnostico Ambiental y Estudios del Agua IDAEA

Spain

7(3.9)

5^th

Universitat de Girona

Spain

6(3.4)

5^th

Suez Canal University

Egypt

6(3.4)

5^th

Faculte des Sciences Semlalia

Morocco

6(3.4)

5^th

University of Sciences and Technology Houari Boumediene

Algeria

6(3.4)

5^th

Sultan Qaboos University

Oman

6(3.4)

10^th

Ain Shams University

Egypt

5(2.8)

10^th

King Abdullah University of Science and Technology

KSA

5(2.8)